LED Lighting - Beriled

Contents | Zoom in | Zoom out For navigation instructions please click here Search Issue | Next PageNOVEMBER/DECEMBER 2009LEDsmagazine.comTECHNOLOGY AND APPLICATIONS OF LIGHT EMITTING DIODESArchitectureLEDs win the Grand Prix P.14ManufacturingSupply chain setsroadmap P.18ConnectorsThe vital link forlighting P.22SafetyNavigating the routeto certification P.37Courtesy of Enfi s GroupContents | Zoom in | Zoom out For navigation instructions please click here Search Issue | Next Page

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSSuperb LED Lighting by XLEDs, KoreaLED MR 16 LAMP8WGA1607S8W12V280Lm440LuxLED MR 16 LAMP4W1605TL4W12V190Lm320LuxLED Desk Lamp10W3 Color ModeQ-20010W12V1400LuxDoHyeon B/D 4F #128-6 Nonhyeon-dong, Kangnam-Gu, Seoul Korea, www.exleds.comTel : 82-2-3443-5360 ext 309 Fax : 82-2-3443-5351 E-mail : info@daejindmp.co.krPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

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Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSHigh Performance. Low Power.Energy-Efficient LED Lighting SolutionsNational’s new low-side, constant-current LED driver offers integrated thermal controlto increase system reliability. The thermal foldback feature of National’s LM3424 LEDdriver provides a more robust thermal design to extend the life of the LEDs, making it anideal solution for a variety of outdoor, automotive, and indoor lighting applications.NominalCurrentLED CurrentTemperatureBreakpointLED Temperature© 2009, National Semiconductor Corporation. National Semiconductor, , PowerWise, and WEBENCH are registered trademarks. All rights reserved.Thermal ManagementSince thermal design greatlyimpacts the light outputand lifetime of the LEDs,a well-designed thermalsystem is critical. TheLM3424’s thermal foldbackfeature eliminates theneed for external thermalmanagement circuitry,allowing for a more robustand reliable thermal systemand extending the life of theLEDs.Easy to UseWith National’s WEBENCH ®LED Designer online tool,designers can use theLM3424’s thermal foldbackfeature to visualize thedesign’s behavior at userselectedLED temperaturebreakpoints for easy andquick development ofa thermal managementsystem.Flexible DesignNational’s LM3424 LEDdriver, with a wide inputvoltage range, can be easilyconfigured in buck, boost,buck-boost, and SEPICtopologies with minimaladjustments. Driving amaximum of 18 LEDs inone string, the LM3424gives designers flexibilitywhile providing up to 96%efficiency and accuratecurrent regulation with lesspower and heat dissipation.national.com/ledPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSISSUE 30november/december2009Cover StoryFormula One World Champion JensonButton races past the Yas Hotel, AbuDhabi, which is covered with an LED netfrom Cooper and Enfi s (p.12).Photo credit: Enfi s Group plc.features18 MANUFACTURINGSupply chain maps a path to bringing down thecost of LED lightingPaula Doe, SEMI22 CONNECTORSConnectors provide the vital link for lightingsystem designRonald Weber, Tyco Electronics29 CONFERENCESRecent conferences in Asia highlight LED industryprogressBob Steele, Strategies Unlimited32 OUTDOOROutdoor LED lighting benefi ts from PG&E efforts,but health concerns are surfacingBrian Owen & Tim Whitaker4917columns/departmentsCOMMENTARY Tim WhitakerNights draw in, LEDs lightthe road aheadNEWS + VIEWSLEDs tower above Paris, LondonEquipment sales on the riseEpistar and Lynk Labs ink dealCree shows 102 lm/W LED A-lampEnfi s and Cooper provideLED veil for Yas HotelFUNDING + PROGRAMSEPA and DOE sign deal to endEnergy Star Wars sagaRogue lamp labels hit the shelves37 SAFETYNavigating the product safety certifi cation processfor solid-state lighting productsTodd Straka, Intertek40DESIGN FORUMPutting the Smart Phone in control: using apps inembedded systems to control LED lightingCarl Matthews, ML Electronics Ltd4344PRODUCT FOCUSLAST WORDReally Big LEDs will enablethe next phase of LED lightingKeith Ward, Luminus DevicesPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGScommentaryNights draw in, LEDslight the road aheadAutumn is here, the days are growingshorter and I’ve got my LED bike lightsout of the drawer. The conference schedulehas been packed in recent weeks, with theeconomy causing some events to struggle,while others such as Light Show West in LosAngeles were very well attended, with excellentfeedback. We’re pleased to say that nextFebruary’s Strategies in Light 2010 (SantaClara, CA) will be the largest in the show’shistory, and a strong conference programhas been announced (see __________www.ledsmagazine.com/news/6/10/28).Also in California,_______________utility Pacific Gas & Electric (PG&E) hasremoved a major roadblock for roadwaylighting by including LED technology in itsrate schedule (p.32). Put simply, PG&E hasacknowledged the energy-efficiency benefitsof LED technology, so that customers operatingLED streetlights are charged less forPG&E’s services and power.In our last issue we wrote about the USDOE’s Lighting Facts program, which hasintroduced a label for lighting performancethat is similar to the Nutrition Facts labelscommonly seen on food products. A greatidea, but unfortunately it has been underminedfirst by Philips and then Osram Sylvania,who both circumvented procedures andprinted their own labels (p.17). Now we hearthe Federal Trade Commission is looking ata similar labeling program for all lamps, tohelp consumers understand exactly whatthey are buying. Hopefully this will get ridof some of the ridiculous comparisons thatare published on lamp packaging.Speaking of replacement lamps, it appearsthat the DOE’s Caliper program is doing itsjob. We hear that Costco, a major US store,has recalled certain LED lamps after theywere proven by Caliper testing to have vastlyinferior performance to the values claimedby the manufacturer.Positive news for replacement LED lamps:Cree has set new standards with its prototypeA-19 lamp which has an output of 969lm and efficacy of 102 lm/W. The 2800 Klamp has 91 CRI (p.12). In our last issue wewrote about the L Prize, which focuses onachieving performance targets for differentLED lamp types. Philips has submitteda 60W-replacement prototype, which is nowbeing evaluated. In my view, it doesn’t makesense to award these lucrative prizes untilthe performance thresholds are reached bya lamp that is in full production. Customersdon’t buy prototypes. Also, the price pointneeds to be considered, since market transformationrequires high-performance lampsthat people can afford to invest in.Finally, as this issue was going to press,we heard that GE has acquired an LED moduletechnology from Journee Lighting (www.ledsmagazine.com/news/6/11/10). The modulecan be inserted into a luminaire with asimple twist-lock action, which makes therequired thermal and electrical connections.Crucially, this means the module canbe removed and replaced in case of failure ofthe LED source or drive circuitry, and it canalso be upgraded as LED technology continuesto evolve. As a major lighting player, GEhas struggled to penetrate the mainstreammarket with its LED offerings, but thesemodules could be just what the market islooking for.Speaking of false dawns, I’m going to goand buy a blue-LED-based light therapy boxto help combat the shorter autumn days.____Tim Whitaker, EDITORtwhitaker@pennwell.comGROUP PUBLISHER Christine Shawcshaw@pennwell.comEDITOR Tim Whitakertwhitaker@pennwell.comTel. +44(0)117 946 7262MANAGING EDITOR Carol Settinocarols@pennwell.comTel. +1 603 891 9234CONTRIBUTING EDITOR Brian OwenMARKETING MANAGER Luba HrynykPRESENTATION MANAGER Cindy ChamberlinPRODUCTION DIRECTOR Mari RodriguezSENIOR ILLUSTRATOR Christopher HippAUDIENCE DEVELOPMENT Debbie BouleyEDITORIAL OFFICES PennWell Corporation, LEDs MagazineCorporate Offices98 Spit Brook Road, LL-1Nashua, NH 03062-5737Tel: +1 603 891-0123Fax: +1 603 891-0574www.ledsmagazine.comSALES OFFICESSALES MANAGER Mary Donnelly(USA) maryd@pennwell.comTel. +1 603 891 9398SALES MANAGER Joanna Hook(EUROPE) joannah@pennwell.comTel. +44(0)117 946 7262SALES MANAGER Manami Konishi(JAPAN) manami@ics-inc.co.jpTel: +81 3 3219 3641SALES MANAGER Mark Mak(CHINA & HONG KONG) markm@actintl.com.hkTel: +852 2838 6298SALES MANAGER Alice Chen(TAIWAN) alice@arco.com.twTel: +886 2 2396 5128 ext.206CORPORATE OFFICERSCHAIRMAN Frank T. LauingerPRESIDENT AND CEO Robert F. BiolchiniCHIEF FINANCIAL OFFICER Mark C. WilmothTECHNOLOGY GROUPSENIOR VICE PRESIDENT Christine A. ShawSENOIR VP OF AUDIENCE Gloria S. AdamsDEVELOPMENTVP INTERNET SERVICES Tom CintorinoSUBSCRIPTIONS: For subscription inquiries:Tel: +1 847 559-7330;Fax: +1 847 291-4816;e-mail: led@omeda.com;ledsmagazine.com/subscribeWe make portions of our subscriber list available to carefully screenedcompanies that offer products and services that may be important foryour work. If you do not want to receive those offers and/or informationvia direct mail, please let us know by contacting us at List ServicesMagazine Name, 98 Spit Brook Road LL-1, Nashua, NH 03062.Copyright © 2009 PennWell Corp. All rights reserved. Contents ofthis publication may not be reproduced in any form without priorwritten consent of Publishers.4 NOVEMBER/DECEMBER 2009 LEDsmagazine.comPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSwww.osram-os.comLEDs for General Lighting SolutionsOSRAM Opto Semiconductors empowers lighting solutions for today and tomorrowPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSLEDs MAGAZINEonlineWebcastsOptimizing LED Performancethrough Heat ManagementORIGINALLY BROADCAST: October 2009PRESENTERS: Martin Schon, Sapa Extrusions; Mick Wilcox, NuventixSolid-State Lighting: Safety CertificationProcess and Performance TestingMeasurement TechniquesORIGINALLY BROADAST: September 2009PRESENTERS: Greg McKee, LabsphereTodd Straka, IntertekVisit www.ledsmagazine.com/webcasts to access upcomingand archived presentations.Web Exclusive ArticlesStrategically Speaking: Recent conferencesin Asia highlight LED industry progresswww.ledsmagazine.com/features/6/10/12High-efficiency lighting needs high-efficiency manufacturingwww.ledsmagazine.com/features/6/10/3Fitted Target Efficacy metric promotes discussionwww.ledsmagazine.com/features/6/10/2Featured CompaniesThe following have recently been added to the LEDs Magazine site as FeaturedCompanies (see www.ledsmagazine.com/buyers/featured):High Power Lighting Corp. • Instruments Systems GmbHADVERTISERS indexAvago Technologies C3Citizen Electronics Ltd. 7Daejin DMPC2Edison Opto Corporation 13Elecosn HK 43Foxsemicon 43GE Lumination 43Genie Electronics 24GlacialLight 33Innovations in Optics 30Instrument Systems 24GmbHIntertek 8Kingbright Electronic 41Europe GmbHLabsphereC4Lambda Research Corp. 12MeanWell USA 25National Semiconductor 2OptoElectronix Inc. 43Osram Opto 5Semiconductors GmbHQuasar Light Co Ltd. 10Roal Electronics USA Inc. 43Semileds 26Seoul Semiconductor 11Co Ltd.Sichuan Jiuzhou Electric 1GroupSigncomplex Ltd. 21Specialty Coating 35Systems Inc.SphereOptics LLC 14Stockeryale 15Supertex Inc. 19Taitra 27The Bergquist Company 16Thomas Research 28ProductsUPEC 43USHIO 31FEATURED eventsStrategies in Light 2010February 10-12, 2010Santa Clara, California, USAAn expanded Lighting Track and a newsolid-state lighting Investor Forum will beamong the highlights of SIL 2010 — seewww.ledsmagazine.com/news/6/10/28for full program details. Register byDecember 11 for early-bird discounts.MORE: www.strategiesinlight.comOLED Lighting Design Summit 2009December 2-3, 2009Boston, MA, United StatesForumLEDDecember 3-4, 2009Lyon, FranceWhite LEDsDecember 13-16, 2009Taipei , TaiwanPhotonics West 2010January 23-28, 2010The Moscone Center, SanFrancisco, CA, United StatesThe ARC Show 2010February 03-04, 2010Earls Court, London, United KingdomLED China 2010March 02-05, 2010Guangzhou, ChinaLight+Building 2010April 11-16, 2010Frankfurt am Main, GermanyLighting Japan: the 2nd LED/OLED Lighting Technology ExpoApril 14-16, 2010Tokyo Big Sight, JapanLightfair 2010May 12-14, 2010Las Vegas Convention Center, United StatesLED Lighting TaiwanJune 09-11, 2010Taipai, TaiwanLED Expo and OLED Expo 2010June 22-25, 2010KINTEX, South KoreaMORE: www.ledsmagazine.com/events6 NOVEMBER/DECEMBER ER/DECECEMBER 2009LEDsmagazine.comPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

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Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSAnd the market said, “Let there be LED.”LED products are the future of lighting. They are also quite complex and rapidly evolving—which is why youneed a test lab like Intertek. No other lab in the world offers the same breadth of safety and performancetesting services. Plus, we have labs in Europe, North America and Asia, each with a commitment to ultra-fastproject turnarounds. And our engineers offer the kind of guidance that can make all the difference when itcomes to getting your product to market on time.Our industry leadership was established long ago by our founder, Thomas Edison. It’s his legacy that inspiresour team today as lighting reinvents itself,once again. For more information, whitepapersand webinars, please visit our website.1-800-WORLDLAB (967-5352)www.intertek.com/lightingIntertek offers product safety certification (ETL) as well as EMC, quality,performance, environmental and energy efficiency testing services.Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

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Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS_____________________news+viewsannounced plans to enter the AC LED marketwith single-chip AC LED technology. Lastyear, Epistar obtained a patent license fromITRI, the Taiwan-based Industrial TechnologyResearch Institute.• In September, Epistar raised US$351 millionin equity financing, and has settled adispute with Philips Lumileds over AlIn-GaP LED technology and products (www. ____ledsmagazine.com/news/6/9/23).• Also, Epistar says it has developed atechnology to enable high color renderingindex (CRI) and high efficacy for warm-whiteLEDs. The company has combined its blueand red chips in different packages (www. ____ledsmagazine.com/news/6/11/4). ◀MANUFACTURINGSemiLEDs increases capacityLED maker SemiLEDs Corporation hasintroduced an Aixtron MOCVD system with7 × 4-inch configuration into its 4-inch LEDwafer fab in Taiwan. SemiLEDs has shiftedits mass production of its VLED productsto 4-inch wafers, which it says will greatlyincrease production capacity to meet strongdemand for high-end applications, such asstreet and domestic lighting. The fab willbe able to produce 10 million high-powerVLED chips per month when running atfull capacity. At the recent ChinaSSL conference,SemiLEDs announced that its packagingcustomers, using I-core MvpLED chips,have achieved 120 lm/watt for cool-whiteLEDs running at 350mA. ◀MORE: www.ledsmagazine.com/press/20396REPLACEMENT LAMPSCree shows 102 lm/W LED A-lampCree has demonstrated an A-lamp LED lightbulb with an output of 969 lumens at 102lm/W efficacy, which the company claimsis the highest lumen output and efficacyreported in the industry (www.ledsmagazine.com/news/6/11/3).The light output is________________________equivalent to that of a 65W incandescentbulb, but Cree’s LED version uses only 9.5W.The demonstration A-19-style bulb featuresthe latest Cree production XLamp® XP-GLEDs and TrueWhite Technology, a patentedmethod of delivering warm-white lightwith high color rendering and efficiency.The 2800 K warm-white lamp has 91 CRI.Cree said that all data was verified by thirdpartytesting under steady-state operatingconditions.The US government’s L Prize includes acategory for an LED replacement for a 60Wincandescent lamp. Light output shouldexceed 900 lm with energy consumptionof less than 10W, and efficacy of more than90 lm/W. CRI should exceed 90 with a colortemperature in the 2700–3000 K range.It remains unclear whether Cree may planto manufacture LED lamps in the future, orto license its technology and/or sell its LEDsto an established lamp maker.• Cree’s revenue for LED products was arecord $156 million for the quarter endedSeptember 27, 2009, a14% increase over theprevious quarter.• Cree’s cool-white XLamp® XP-G LED isnow commercially available. It can produceup to 367 lm when driven at 1A, at a typicalefficacy of 111 lm/W. The highest-performingbin also has a standard minimum fluxat 350 mA of 139 lm. The XP package size is3.45 × 3.45 mm.• Cree expects to add 275 jobs in NorthCarolina during 2009 to serve the expansionof its LED manufacturing capacity andother staffing needs at its facility in Durham,NC. ◀ARCHITECTURALEnfi s and Cooper provideLED veil for Yas HotelAnyone who saw the recent Formula OneGrand Prix in Abu Dhabi could not fail tonotice the color-changing LED veil coveringthe Yas Hotel, which is unique as theonly hotel in the world to sit astride a racetrack. The building’s visual impact is greatlyenhanced by its exterior LED mesh, containing208,800 LEDs, which resulted from a collaborationbetween two UK-based companies,Cooper Lighting and Enfis Group plc.The exterior consists of sweeping, curvilinearforms constructed of steel and over 5,300pivoting diamond-shaped glass panels whichare illuminated via the LED lighting system.Cooper used over 5,850 Enfis LED arrays inits lighting system. Primarily these wereEnfis 4-channel UNO Plus arrays and controldrivers integrated into custom-designed12 NOVEMBER/DECEMBER 2009 LEDsmagazine.comPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

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Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSnews+viewsIP65-rated stainless-steel stanchions.The desert climate of Abu Dhabi can reach60°C in the summertime, creating problemsfor most light sources. Cooper said that theEnfis array/driver system was the only onethat passed the rigorous environmentalchamber trials. Enfis’ technology providesthe ability to control each LED array, aswell as two-way communication with eachdriver/array combination providing realtimemonitoring of fixture temperature,CCT and energy consumption. The RemoteDesk Management (RDM) DMX control systemwas supplied by e:cue. ◀MORE: www.ledsmagazine.com/news/6/11/2MANUFACTURINGLG invests in LEDsLG Group, one of Korea’s largest display makers,plans to spend about 4 trillion won (about$3.34 billion) on a major plant for makingliquid-crystal display (LCD) glass substratesand LEDs in Paju, Gyeonggi Province, Korea.The new, 840,000-square-meter manufacturingfacility will begin producing LED componentsand materials in 2010, and LCD glassin 2012, and will be critical in LG’s plans toexploit the sharply increasing demand fornext-generation display and lighting technologies.LG Innotek, the company’s LEDsubsidiary, will invest around 1 trillion wonthrough 2012, and will use the new facilityto produce LED BLUs and lighting components.The plant will eventually boostthe company’s production capabilities ofLEDs by four times the current level with afocus on LED backlighting units for use inLCD televisions and monitors produced byLG Display. ◀MORE: www.ledsmagazine.com/news/6/9/25BUSINESSTyntek to acquire UbiluxTyntek Corp, a Taiwan-based LED chipmaker, has obtained approval from its boardto acquire Ubilux Optoelectronics Corp., theLED chip manufacturing arm of PowerchipSemiconductor Corp, Taiwan’s secondlargestcomputer memory chipmaker. Theshare-swap deal is worth about NT$2.81billion (US$86.8 million). After the acquisition,Powerchip will become the biggestshareholder at Tyntek, and Tyntek will bethe third largest LED chip maker in Taiwan,after Epistar Corp and Optotech Corp. Thecompany has aggressive expansion plansand will increase the number of MOCVD systemsto 30 units by the end of next year. ◀MORE: www.ledsmagazine.com/news/6/10/24__________________________________________OLEDSTransparent low-profi leOLED lighting panelsOsram Opto Semiconductors has developedprototype large, transparent OLEDpanels, that measure 17 × 17 cm 2 and havea luminous area of 210 cm 2 . The panels areonly a few hundred micrometers thick,and do not need separate encapsulation.The test samples were developed as partof the TOPAS research project funded bythe Germany Ministry for Education andResearch (BMBF). The aim of the project is14 NOVEMBER/DECEMBER 2009 LEDsmagazine.comPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSto produce 1 m 2 transparent OLED modules,and will run until 2011. Osram Optosays that in the OLED lighting marketthere is a clear demand for large, low-profiletransparent light sources. The OLEDpanels can be made transparent due tonew developments in electrode designand a new approach to thin-film technology.The current is distributed evenly overthe active surface, which in turn leads touniform luminance. Further developmentwork will lead to an even thinner carriermaterial, and therefore to even thinnerOLEDs. The new technology also simplifiesthe manufacturing process, whetherOLEDs are produced on a small moleculeor polymer basis. The next stage is to integratethe processes into a stable manufacturingoperation. ◀MORE: www.ledsmagazine.com/news/6/10/19LICENSINGAcuity joins Philips LEDluminaires licensing programAnother major lighting company, AcuityBrands Inc, has signed up for Philips’ licensingprogram for LED-based luminaires. Acuitywill gain access to Philips’ patent portfoliofor LED systems and controls. The deal coversworldwide sales of LED-based luminairesfrom all of Acuity’s businesses. Acuity Brandsis one of the world's leading providers of lightingfixtures and related products, with brandsincluding Lithonia Lighting, Holophane,Peerless, Gotham and Mark ArchitecturalLighting. Philips has already signed licensingagreements with major players such as Osramand Zumtobel. ◀MORE: www.ledsmagazine.com/news/6/10/21LED PERFORMANCELumileds publishes LM-80 dataPhilips Lumileds is claiming to be the firstpower LED manufacturer to publicly publishnews+viewsLM-80 test report data, which describes thelumen maintenance characteristics of itswhite Luxeon Rebel LEDs. The report, availablefrom its website, will be useful for luminairemanufacturers when evaluating themerits of using different LEDs for their SSLproducts. Lumileds is encouraging other LEDmakers to follow its lead. ◀MORE: www.ledsmagazine.com/news/6/10/20Correction:Dialight installationIn our last issue we published an articlewritten by Linear Technology (LEDsMagazine, Sept/Oct 2009, p. 49; ___ www.ledsmagazine.com/features/6/10/9).Figure 2, which shows a refi neryinstallation, as well as informationin the section entitled "Industriallighting," is taken without permissionor acknowledgement from a case studypublished by Dialight (www.ledsmagazine.com/press/17997). The article also claimsthat a Linear IC was used in Dialight'sfi xtures. According to Dialight, Linear'sIC is defi nitely not used in the luminairespictured in Dialight's installation photo,nor are any Linear ICs used in any Dialightluminaires. LEDs Magazine apologizes toDialight for publishing this material._____________LEDsmagazine.com NOVEMBER/DECEMBER 2009 15Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSNEW T-CLAD ® PASTICKS IT TO HEAT.Peel and place thermal solution withstands the heat of solder reflow.Easier assembly, cooler LEDs.Thermally conductive insulated metal substrateboards specifically configured for LED applications.Bergquist’s T-Clad with pre-applied Bond-Ply ® 450 allows you to adhere yourmounted LEDs to a variety of heatsinks and surfaces while thermally optimizingyour application.This version of peel and place T-Clad canwithstand the high temperatures of solder reflow duringLED assembly and then be positioned in the lightingapplication using its strong thermally conductive adhesive.Call or visit to qualify for your FREE sample.Call 1.800.347.4572 or visit www.bergquistcompany.com/preappliedFREE T-Clad ® PASample Board18930 West 78th Street • Chanhassen, MN 55317 • A ISO9001:2000 registered facility(800) 347-4572 • Phone (952) 835-2322 • Fax (952) 835-0430 • www.bergquistcompany.comThermal Materials • Thermal Substrates • Fans and BlowersPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSfundingprogramsEPA and DOE sign deal to endEnergy Star Wars sagaAt the end of September, the US Departmentof Energy (DOE) and the US EnvironmentalProtection Agency (EPA) signed a partnershipagreement that transfers the responsibilitiesfor the Energy Star program, includingsolid-state lighting, from DOE to EPA.The original joint announcement (www.ledsmagazine.com/news/6/10/1)stated that the_______________________EPA would be brand manager and Agencylead for the Energy Star products program,while DOE will provide technical support inareas such as product testing and verification.The statement also resolved to developan integrated approach to the Energy Starresidential lighting program that recognizesthe importance of both whole-fixture-basedand light-source-based approaches for measuringlighting energy efficiency.In mid-October, Jim Brodrick, lighting programmanager for the DOE, said that it is stillunclear whether the Energy Star SSL Programwill continue as introduced by DOE, or if significantchanges will be made by EPA (www. ____ledsmagazine.com/news/6/10/18). However,he said that, at the behest of the Next GenerationLighting Industry Alliance (NGLIA) andother industry stakeholders, an agreementhas been reached with EPA to continue thecriteria adoption process for outdoor lightingand replacement lamps.Brodrick commented that Energy Starplayed “only a minor role” in the DOE’s overallcommercialization support efforts forSSL, which he stressed would continue. “Weare in the process of expanding our Caliper,Gateway Demonstration, and Lighting Factsefforts as a way of broadening our commercializationsupport in an expanding industry.We will also be increasing stakeholdereducational efforts, especially for thosepotential buyers not totally familiar withsolid-state lighting,” he said.In early November, Alex Baker, EnergyStar lighting program manager for the EPA,provided an update to Energy Star lightingmanufacturing partners, energy efficiencyprogram sponsors and stakeholders (www. ____ledsmagazine.com/news/6/11/5). Baker saidthat no later than November 30, 2009, DOEand EPA will release a more detailed proposaloutlining anticipated Energy Star programenhancements for 2010, including a proposedapproach for integrating various elements ofthe Energy Star lighting program.“Among other things,” said Baker’s letter,“it is EPA’s intention to streamline the qualificationprocess and paperwork related toEnergy Star qualification of lighting products,as part of the process of integratingpotentially duplicative and overlappingspecifications.”Baker also said that EPA intends to retainkey elements of the DOE-developed EnergyStar specifications for Solid State Lightingand Integral LED Lamps, including testingaccording to the IES LM-79 standard, asappropriate.“The process to integrate the lighting specificationswill be consistent with Energy StarGuiding Principles, and open to partner andstakeholder review through a series of publiccomment periods resulting in final version(s)that go into effect after sufficient transitiontime,” said Baker’s letter. “Until this task iscomplete, partners will continue to be ableto qualify products using existing specificationsand contracting support to the EnergyStar program.” ◀Rogue lamp labelshit the shelvesIn September, we reported that severalPhilips LED lamps were on sale in theUSA with unauthorized versions of theLighting Facts label on their packaging(www.ledsmagazine.com/news/6/9/21).The Lighting Facts label is part of the USDepartment of Energy’s voluntary SSLQuality Advocates program, via whichLED luminaire makers can “demonstratetheir commitment to accurate and consistentreporting of product performanceclaims,” to quote the DOE. Blaming aninternal procedural error, Philips hurriedlyjoined the program and submittedthe required performance data.In October, it emerged that Osram Sylvaniahad also made its own LightingFacts label for its 4W PAR16 LED lamp(www.ledsmagazine.com/news/6/10/14).________________________This particular label lacks the standardportrait format and other features of theauthorized version.In between the Philips and Osram Sylvaniaincidents, the DOE commented onthe Lighting Facts label program, sayingthat it will take “immediate action” toinvestigate any violations and insist onconformity with the program requirements.The DOE said anyone “who doesnot play by the rules” should expect tohear from DOE lawyers and the FederalTrade Commission. We have yet to hearof any outcome in this direction, butthe DOE also correctly said that roguelabels undermine the very nature of theprogram, which is designed to protectthe consumer from "getting burned" byproducts whose performance falls shortof manufacturers’ claims.Equally important, but not coveredby the Lighting Facts program, is theissue of invalid and inappropriate comparisonswith existing technology. TheOsram Sylvania 4W LED lamp is statedto be a replacement for a 25W lamp (ofunspecified type). However, the LEDlamp produces only 110 lumens—whichwould be pretty shoddy performance forany 25W lamp.LEDsmagazine.com NOVEMBER/DECEMBER 2009 17Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSLEDs | MANUFACTURINGSupply chain maps a path to bringingdown the cost of LED lightingSignifi cant reductions could be achieved in the cost of producing LEDs, particularly if the supplychain can collaborate on an industry-wide roadmap, writes PAULA DOE of SEMI.It should be possible to achieve about a70% reduction in production costs for LEDlighting by 2015. This was one conclusionreached by attendees at two US Departmentof Energy (DOE) workshops that looked atways to improve solid-state lighting (SSL)manufacturing (see “SSL Manufacturingworkshops”). A big part of that potentialdecline is projected to come from a reductionof about 85% in the cost of the packagedLED, which now accounts for some 40% ofthe cost of the luminaire.However, achieving those aggressivepotential reductions will likely depend, inpart, on sector cooperation on an industryroadmap—and a realistic common-costmodel—so those within the supply chain canfigure out where to best focus their efforts.Such pre-competitive collaboration has beenused effectively by the semiconductor andflat-panel display industries in the past todrive more rapid improvement in processtechnology.DOE recently released an initial roadmapfor HB-LED and OLED manufacturingtechnology. The roadmap is based onthe stakeholder discussions at the workshops,and represents industry consensuson the expected evolution of SSL manufacturing,best practices, and opportunities forimprovement and collaboration. “We cameto some consensus on where the principalcosts are, which gives us a better sense ofwhat needs work,” says Fred Welsh, RadcliffeAdvisors, consultant to the DOE and one ofthe organizers.DOE plans to update the roadmap nextyear, and also to continue work on developinga cost-of-ownership model, to betterRelative manufacturing cost1.00.80.60.40.20.0identify where the best gainsfrom investments in improvingmanufacturing processwould be. Such a model wouldallow the community to identifyequipment and processeslying on the critical path andoffer a more quantitativeassessment of the beneficialcost impact of addressingeach issue. The equipmentand materials industry associationSEMI, which has facilitatedsimilar efforts in othersectors, also welcomes inputon how it can best help supportthese efforts, says Tom Morrow, SEMIVP of global exhibitions and marketing.EQUIPMENT: Suppliers see2–3x potential reductionsSemiconductor equipment makers say thereare real options for making big improvementsin process yields and productivity tobring down SSL costs, by applying learningsfrom other thin film manufacturing sectorsand designing equipment specifically suitedto this sector, with the kinds of process controland volume throughput that are nowrequired.“We think overall epitaxial processingcost has to come down 3×, and we seea path to be able to do that,” says Jim Jenson,VP of marketing for the MOCVD businessat Veeco Instruments, Inc. (Plainview,NY). He notes that progress has been madeon improving the complex, multi-hourepitaxial process that grows most of the keydevice layers. This has included developmentPAULA DOE covers Emerging Markets for SEMI (www.semi.org), the global industry associationserving the manufacturing supply chains for the microelectronic, display and PV industries.OpticsAssemblyPower suppliesThermal & metal bendingLED devices2009 2010 2012 2015FIGURE 1. Projected luminaire cost, and potential forreduction. Source: DOE Manufacturing Workshop.of better uniformity and repeatability, optimizedflow geometries, better temperaturecontrol, faster processing time, improvedsystem architecture and optimized batchsizes, though it could take a few years for allthese developments to get into high-volumeproduction.Another more radical option being consideredby both established and potentialnew suppliers is to divide the epitaxial processinto separate chambers, each optimizedto the different requirements of the differentlayers. Typically this would use hydridevapor phase epitaxy (HVPE) for the thickGaN, though HVPE reactors will need to bemade into high-volume tools. Oxford Instrumentsplc (Yatton, UK) recently announcedthe first multiwafer HVPE reactor (see____www.ledsmagazine.com/press/18664).Applied Materials, Inc. (Santa Clara,CA) reports it’s making progress on possibleMOCVD solutions as well. “We see techniquesfrom IC processes used for decadesthat would apply,” says Pat Lamey, strategicmarketing and new business developmentfor the energy and environmental solution18 NOVEMBER/DECEMBER 2009 LEDsmagazine.comPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSLEDs | MANUFACTURINGgroup. He notes that Applied’s developmentfocus is now getting feedback from customers,and is based on a combination of commonlyused MOCVD processes and “sometechnology that’s been written about fordecades but never brought to production.”Lamey also says that better process controlis key to improving overall LED yieldsand costs, because it’s crucial to overallthroughput and performance. “We’re seeinga segment of the solid-state businesswith potential for significant improvementin the next half decade, and the sooner wecan bring the production techniques andcontrols known from our other technologiesand products, the faster it will move into themarket place,” says Lamey. “A roadmap willbe particularly helpful, especially since theLED industry is transitioning from two-inchsubstrates to 100mm substrates.”Likely to propel the biggest jump in manufacturingproductivity, however, could be theentry of some big silicon chip makers whoare accustomed to doing very controlled productionin very high volumes. “The customerbase is evolving as new players from the ICSSL ManufacturingworkshopsThe DOE held two SSL Manufacturingworkshops in 2009 (April 21–22 inFairfax, VA, and June 24–25 in Vancouver,WA), as the start of a new initiative toenhance product consistency and quality,and to accelerate cost reductions throughmanufacturing improvements. Morethan 350 participants—chip makers,fi xture and component manufacturers,and others—examined underlying issuesrelated to materials, equipment, andother factors that infl uence SSL productquality and cost. The Fairfax workshopattendees identifi ed key barriers andrecommendations toward lower-cost,higher-quality SSL products, and a draftroadmap was reviewed at the Vancouverevent. The fi nal version of the roadmaprepresents industry consensus on theexpected evolution of SSL manufacturingand is available at www.ssl.energy.gov/projects.html. ◀________industry enter the field,” saysLamey. “Their entry will havea huge impact on manufacturingtechnology.”KLA-Tencor Corp. (Milpitas,CA) sees another potential2× cost reduction fromimprovements in defectinspection and defect sourceanalysis, says Richard Solarz,KLA-Tencor senior directorof technology, as the LEDindustry currently lacksboth appropriate inspectionequipment to find the criticaldefects and efficient systems►Relative manufacturing cost1.00.80.60.40.20.0to figure out what’s causing them. Toolsdeveloped to inspect finer features on siliconfor the IC industry find a lot of defects thatdon’t matter for LEDs, and can’t find othersthat do. For example, they can’t differentiatethe problematic micropits or threadingdefects in sapphire from the particles thatdon’t matter, and they can’t bin the finisheddie by the qualities of2009 2010 2012 2015Wafer processingEpitaxySubstratePhosphorBack endFIGURE 2. Projected packaged LED cost, and potentialfor reduction. Source: DOE Manufacturing Workshop.Supertex HV9910B and HV9961 LED Drivers:Switching Converters Optimize LED Performancein Municipal LightingEfficient - Simple PFC implementation meets or exceeds most municipalpower efficiency requirements (PFC > 90%, THD < 20%)► Durable - LED driver lifetime extended by elimination of the needfor electrolytic capacitors►►interest. And laserbasedbare wafer/film surface analysistools in the frontend,developed forthe hard-disk industry,can’t talk to theimage-based patterned-waferinspectiontool in the backend,developed toinspect wafer-levelchip packaging. Thismakes it difficult toquickly track defectsback to their source.“Now that weunderstand the keydefect needs of manyof the LED manufacturers,we have identifiedkey changes weneed to make in ourtools to isolate thesedefects. And we needto overlay the defectmaps from the tools,”says Solarz. “Workingwith our customers,we believe that we can reduce manufacturingcost in many cases by as muchas a factor of two.” He sees other potentialfor improved yields, but only if the industryagrees on what is needed. One example,he notes, is the difference in opinionabout the need for a color-quality monitor.“The answers range from solid 'yes' to solidModular and Scalable - One driver can control multiple LED strings,or add more to easily scale to different power levelsEasy to design - Simple output current programming and no needfor loop compensationTo learn more about the Supertex Switching Converter LED Driver ICs, visit:www.supertex.comSupertex inc.1235 Bordeaux Drive, Sunnyvale, CA 94089 ♦ (408)222-8888 ♦ E-mail: mktg@supertex.comLEDsmagazine.com NOVEMBER/DECEMBER 2009 19Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSLEDs | MANUFACTURINGFIGURE 5. Freestanding GaN foil.(Courtesy of Goldeneye)Technologies (Raleigh, NC). “But the worlddoesn’t have much experience in making it,so we’re still coming down the volume learningcurve. But in the meantime there’s a drivingforce for an intermediate solution.”The first intermediate solution now apparentlygetting a serious look is patterned sapphire.Texturizing the surface with differentschemes of wet or dry etch improvesthe quality of the epi layers grown on top,for better light extraction efficiency, thoughwhy this works and how best to do it remainto be worked out. Also a possibility is addingan aluminum nitride (AlN) layer on top ofthe patterned sapphire, with initial resultsreportedly showing increased brightnessand wavelength uniformity. “We stronglysuspect this may bring down costs too,”says Evans, “since it can eliminate some ofthe MOCVD steps.” The AlN-coated sapphirecan be ramped more quickly to the appropriatetemperature and needs no buffer layer,so the epi process can skip straight to hightemperaturedeposition of the GaN, improvingthroughput of the reactor. Deliveries ofthese substrates are expected in 2010.Then there’s the more radical alternativeof putting a GaN surface on the sapphire,then taking away the sapphire and using justthe freestanding GaN foil alone as the substratefor growing the LED layers. Goldeneye(Carlsbad, CA) grows a 30-micron layer ofGaN by HVPE, then removes it by laser liftoff.These thin GaN foils measuring a centimetersquare (see Fig. 5) can be very quicklyramped to growth temperature and cooledback down, allowing an epi growth cycle asfast as 30 minutes, claims Scott Zimmerman,Goldeneye VP of technology. The companyhas just taken delivery of its first reactorredesigned specifically for this kind ofrapid cycling.The European semiconductor researchconsortium IMEC, meanwhile, is workingon controlling thermal mismatch of GaNgrown on silicon, by monitoring the growthin situ and doing careful stress engineering.“GaN on Si is the option that offers thebest cost reduction possibilities in the endcompared to any other choice,” argues MarianneGermain, GaN program manager forIMEC. “Si is the only substrate that allowsfor large wafer diameters and lower substratecost.” IMEC claims to have reduceddefects to about the same level as on sapphire,by using several intermediate layersof AlGaN and silicon nitride (SiN) betweenthe Si and the GaN.________________LEDsmagazine.com NOVEMBER/DECEMBER 2009 21Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSlighting | CONNECTORSoperate at higher voltages, contacts arespaced further apart to meet agency separationrequirements.Housings and environmental concernsThe connector housing provides a numberof very important functions. Fundamentally,the housing provides environmental protectionand electrical insulation between adjacentcontacts and between the contact andthe outside world. This insulation is usuallyverified and stated as a voltage in theDielectric Withstand Voltage (DWV) ratingfor the connector.A properly-designed housing holds thecontacts in one half of a connector in correctrelationship with the contacts in themating half to provide trouble-free matingand unmating. It also fixes the spacingbetween contacts and defines the creep(electrical tracking distance over surfaces)and clearance (linear “line-of-sight” distance)between contacts.The environmental protection provided bythe housing can preventcontaminants(both solid and liquid)from getting into theconnector interface,and also preventsinadvertent physicalcontact with the electricalcontacts. TheMini-CTconnectionContactcarrierconnector’s level of sealing typically adheresto the well-recognized IP levels (see Fig. 3).When dealing with elevated voltages (usuallyabove 48 volts), most safety standardsrequire design features to prevent accidentalphysical contact with the electrical contact.In this case, contacts are recessed to someextent and often shrouded as a mechanicalbarrier to contact.Choosing a connectorElectrical, mechanical, and environmentalperformance requirements must be identifiedand considered to select the best connectorfor an application. Electrically, theHeat sinkLEDRetentionclipOptional lensand lenscarrierFIGURE 4. High-intensity LED holder combines thermal,mechanical, and electrical management into a single, easy-tousesystem.connector must be compatible with thecontinuous levels of current and voltage. Inaddition, transient and surge conditions thatmay occur over the life of the product needto be identified.Mechanical considerations include formfactorissues such as physical size, matingdirection, and how the connectors are heldtogether after mating. The connector mustalso be evaluated for the degree in which itcan withstand mechanical abuse, such asvibration, shock, and the like.Environmentally, the connector mustwithstand both application temperatureranges and processing temperatures (suchWe bring quality to light.LED Test and MeasurementMeasure all optical and electricalparameters of single LEDs, highpowerLEDs and LED modulesin conformity to internationalstandards accurately and withinseconds. With equipment fromInstrument Systems – the worldleader in LED metrology.Ï Luminous intensity (candela)Ï Luminous flux (lumen)Ï Dominant wavelength (nm)Ï Color coordinates (x, y, z)Ï Spatial radiation patternÏ Thermal behaviorQuality that your customers can rely on!RoHS assemblyCustom functional testAutomated Optical Inspection0402BGA and X-Ray AnalysisMicrochip authorized designQuick turn prototypesGenie ElectronicsCompany, Inc.www.genieelectronics.com1087 Valley View Road, York, PA 17406717.840.6999 717.757.0194 (fax)light measurementPhone: +49 89 45 49 43 0 · info@instrumentsystems.com · www.instrumentsystems.com24 NOVEMBER/DECEMBER 2009 LEDsmagazine.comPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSVisit www.FutureElectronics.com/Meanwellto see our world class LED driver offering______________www.FutureElectronics.com/Meanwell1-800-FUTURE-1Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSlighting | CONNECTORSas those experienced during reflow solderingof surface-mount connectors). The applicationenvironment will define additionalneeds, such as sealing, ability to withstandsolvents or salt spray, high altitudes, or otherextremes. In outdoor applications, UV exposurecapability is critical to reliable, longtermconnector performance.Thermal considerationsWhile signal applications typically do notrequire thermal management, power contactshave a maximum current rating, usuallybased on a 30°C temperature rise on thecontact. In high-intensity LED applications,the LEDs themselves generate enough heatto require careful consideration to thermalmanagement. Integrating thermal managementinto a system often poses unique systempackaging challenges since most of thenew high-intensity LEDs are small and areoften packaged as surface-mount devices(SMD). Integrating the connector system inamong the LEDs, circuit boards, optics andthermal devices is often quite challengingif left to the end of the design process. Earlyevaluation of the interconnect options providesfor a more tightly integrated, optimizedsolution that can make assembly and,if needed, repair much more efficient.New interconnections must also addressthe special needs of solid-state lighting,including higher operating temperaturesand the ability to provide housings in specificcolors so the connector blends intothe visible parts of the lighting designer’sfixture. It is often very desirable to usecircuit board-mounted connectors withsoftened edges to minimize shadowingand the possibility of partially occludingthe light output of the low-profile surfacemountLEDs.The next step in connectorsCurrent LED lighting design methodologyusually incorporates one or more LEDsonto a circuit board, usually metal-cladfor thermal reasons, since it is well knownthat LEDs perform better when operatingat lower temperatures. This assembly isthen integrated into the lighting fixture.However, throwing out conventional logicthat mandates a circuit board in the system,one could combine a heat sink into theelectromechanical design of the connectorto create a thermoelectric connector thatmates directly to the LED.An example is the high-intensity LEDholder that Tyco Electronics designed for usewith a high-intensity LED (see Fig. 4). Theholder combines a small footprint and lowprofile with a snap-together contact systemfor both direct electrical and thermal connectionsdirectly to the LED. Without theneed for solder, thermal adhesives, or metalcladPCBs, application is simple, cost effective,and expands mounting options beyondthe planar constraints of circuit boards. Asan added benefit, replacement of a faulty____________________Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

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Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSlighting | CONNECTORSLED or changing colors is equally straightforwardsince all it entails is removing theretention clip, removing the LED, and replacingit with a new one. The basic holder kitincludes a contact carrier and an LED retentionclip used to secure the LED to the carrier.The module-to-cable interface is a standardtwo-position Tyco Electronics’ Mini CTpost and receptacle connection that furtherfacilitates plug-and-play operation.Standards and approvalsNaturally, any connector must meet agencyrequirements for any region of the world inwhich it is used. Regulatory agencies like ULand CSA in North America and IEC, TUV, andVDE in Europe have requirements to providefor safe application of a product. Selectingcomponents that have already gone throughthe approval process speeds design and simplifiesapproval of the final product. Giventhe global nature of the lighting market, thedesigner must confirm components meet allregional or local requirements. Being cognizantof the connector agency requirements,as well as those needed by the end application,is critical to the successful selectionand integration of the appropriate connectorsystem.CostThe acquisition cost of the connector isone thing, yet applied cost is quite another.Newer generations of application-specificconnectors for lighting can reduce the costof engineering, manufacturing, warrantyand maintenance. One key to realizing thesesavings is to understand connector basicsand to integrate connector selection intothe overall design process.New solid-state lighting systems withtheir inherent longevity demand equallyrobust connector systems. The LEDs, thermalsolution, optics, and packaging comprisea considerable part of the overall costof the lighting system. The connector is usuallya small part of the overall cost and isoften specified without adequate considerationand balancing of cost versus performance.It makes little sense to scrimp onthe one component that your entire fixturerelies on for power. Without a reliable andappropriate connector system, the lightingfixture, however well designed and estheticallypleasing it is, becomes a dull, static(and unlit) non-functional object d’art.A checklist of requirements can be usefulwhen selecting a connector. The full text ofthis article includes a detailed checklist (seewww.tycoelectronics.com/products/lighting).Keep in mind that connector manufac-__turers typically have product specificationsas well as application specifications available,so be sure to ask the supplier for helpin your selection process. Spend some timeand consideration selecting the appropriateproven connector system for the application,even if it costs a little more. It will pay dividendsin the long run.____________________28 NOVEMBER/DECEMBER 2009 LEDsmagazine.comPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSconferences | JAPAN & CHINAStrategically Speaking: Recent conferencesin Asia highlight LED industry progressTwo recent LED conferences—one in Japan and the other in China—illustrate how the LED industrycontinues to move forward, even in the midst of a worldwide recession that has caused substantialdownturns in other industries, writes BOB STEELE.LED Japan/Strategiesin Light, organized byStrategies Unlimited andPennWell, was held inYokohama on September16-17. The most pleasantsurprise at this eventwas the growth in attendanceover last year’sevent, held in October inTokyo. Total attendance(including the conferenceand associated exhibits)nearly doubled, from 2,700 in 2008 to 5,300in 2009. Likewise the number of exhibitorsincreased from 45 to 67 (more details atwww.ledsmagazine.com/news/6/10/3). Thisoccurred in a year in which the GDP of Japandeclined in the first half by 7.95% from 2008.Clearly something interesting is happeningto attract this kind of attendance in a verydepressed economic environment.Although Japan has long been a majorcenter of HB LED component manufacturing(accounting for 44% of world supply in 2008),it is a relative latecomer in the adoption ofLED lighting, compared to, say, the US,Europe and China. However, that situationis beginning to change, as a number of major(and many smaller) companies in Japanenter the market with well-engineered andwell-designed lighting products.The LED lighting pioneer in Japan hasbeen Panasonic Electric Works (formerlyknown as Matsushita Electric Works), awell-established supplierof lighting products. Thecompany introduced itsfirst LED lighting productsseveral years ago, and in2009 is still the largestsupplier. More recentlyToshiba Lighting and Sharphave entered the marketwith a wide variety of LEDluminaire products as wellas replacement lamps.Regarding the latter, itseems that these companies are beginningto target the consumer market (in additionto the professional lighting market, which isthe focus of most LED lighting suppliers atpresent). In Akihabara, the Tokyo electronicsretail district, a large number of shopsprominently display retrofit lamps fromSharp and Toshiba, claiming light outputequivalent to 40W and 60W incandescentlamps. Retail prices are in the neighborhoodof $40.Other Japanese companies active in theLED lighting market including Ushio, oneof the country’s largest lamp manufacturers,as well as Odelic, Daiko Electric, YamadaShomei, Yamagiwa, Iwasaki Electronics,and several others that are just beginningto enter the market in 2009.As a country with high electricity prices,as well as a strong focus on energy efficiencyand the need for reduction in greenhousegas emissions, it is not surprising thatBOB STEELE is Director of the Optoelectronics Program with Strategies Unlimited (MountainView, CA), part of PennWell’s LED & Lighting Media Group. Tel. +1 650-941-3438.Web: www.strategies-u.com. Strategically Speaking: Insights Into LEDs & Lighting is a regularLEDs Magazine column from Strategies Unlimited. See www.ledsmagazine.com/strategies.Japan has begun the move to solid-statelighting in earnest. Because the countryalready has wide adoption of highly efficientfluorescent lighting, it is understandablethat it has waited until the efficiency ofLEDs has reached the point where they arecompetitive with fluorescent sources tobegin the adoption of LED lighting.There are a number of regulatory movesunder way to promote the adoption of LEDlighting, although the details are not yetclear (at least to an outsider). The focusis on facilities that use lighting on a24-hour-per-day basis, such as factories,convenience stores, gas stations, andthe like. As one example, a Lawson’sconvenience store in central Tokyo hasconverted all of its overhead fluorescentlighting to LEDs.ChinaSSLThe 6th China International Forum on Solid-State Lighting (ChinaSSL 2009), held inShenzhen on October 14-16, showed similarattendance trends to LED Japan. Attendanceincreased from 621 in 2008 to 1,087 in 2009.Organized by the China Solid-State LightingAlliance (CSA), and supported by the ChinaIlluminating Engineering Society, the ChinaAssociation of Lighting Industry, and theMinistry of Science and Technology, amongother organizations and government ministries,this is arguably the most importantLED-related conference among the manyheld in China each year.China’s enthusiasm for solid-state lightingseems to only increase from year to year. Asteady stream of new companies is enteringthe market, at all levels of the supply chain,from epitaxy and chips to lighting fixtures,LEDsmagazine.com NOVEMBER/DECEMBER 2009 29Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSconferences | JAPAN & CHINAPanasonic has introducedthe Everleds range ofreplacement LED lamps.LumiBrightmostly funded by privateinvestment, but with somegovernment support as well.The most recent statistics,reported by Wu Ling, GeneralSecretary of the CSA, andothers at the conference, thereare now more than 1,000 LEDpackaging companies in China(although many of them are• UNPRECEDENTED INTENSITY• ULTRA HIGH BRIGHTNESSLumiBright LS line of LED Line Source Modules• For the Machine Vision market• Unprecedented intensity in range of wavelengths UV to NIR• Accessories include power/control and cooling fan modulesLumiBright LE series of OEM Light Engines• Incorporate ultra high brightness (UHB) LEDs• Primary collection optics, thermistor and photo-sensor options forreal-time feed back or monitoring• One to three wavelengths UV to NIR and phosphors availableThree newly released LumiBright LE modules• Now available with glass optics for long life and high flux UVoperation• New high brightness white Endoscope Illuminator Module toreplace 300 Watt Xenon Lamps.www.innovationsinoptics.com • 781.933.4477very small, with more than 80% of them having investment of lessthan RMB 10 million (US$1.4 million). Perhaps more surprising isthe number of epitaxy and chip companies, estimated to numbermore than 60 by the end of 2009.Equally impressive is the figure of approximately 240MOCVD reactors expected to be installed (or at least on order)by the end of 2009. However, looking at the number of epi/chipcompanies relative to the number of reactors results in a figureof approximately four reactors per company. Compared withthe more massive reactor populations installed or planned bycompetitors in the US, Europe, or elsewhere in Asia,it seems likely that some consolidation among thevarious Chinese chip companies will be required toachieve economies of scale and to refine large-volumemanufacturing processes, as has happened over thepast few years in Taiwan.In addition to the chip and packaging companies, thereare also several thousand LED application companies inChina. The exact number is hard to determine, and infact it is growing on a weekly basis. According to CSAdata, the total LED applications revenue in China in2008 was RMB 45 billion (US$ 6.5 billion), up 50% over2007, with the largest applications being architecturallighting and display.In addition to this domestic market, Chinese system companiesare also active in production for the export market as well. Thisprovides and important market opportunity for foreign HB LEDsuppliers, as the Chinese exporters are becoming more sensitive toquality, especially for lighting products, and thus many of them areusing imported LEDs from Cree, Lumileds, Osram and other foreignsuppliers to achieve performance and reliability levels that are notavailable from domestic LED manufacturers.LED streetlights continue to be a focus of the Chinese nationalsolid-state lighting effort. In the past, individual cities have taken thelead, installing many thousands of streetlights per city in a numberof cases (the best estimate of the cumulative total through the endof September 2009 is 200,000). Vendors were usually chosen from thelocal region, and product quality was often poor, with many earlyfailures reported.A new streetlight program, initiated at the national level, willinvolve 21 cities, each of which is expected to install at least 10,000LED streetlights. There will be a much greater emphasis on quality,and performance standards will have to be met as part of the biddingprocess. While in the past suppliers were all based in mainlandChina, in the new program bidding will be open to suppliers fromTaiwan as well.The total potential number of streetlights that could be installedunder this program could be up to 1 million. However, the timeframeover which this could happen is still uncertain. At this point theprogram is still in the discussion phase, and no installations have yettaken place. In the meantime, many cities continue to install LEDstreetlights on their own, and a dozen others are clamoring to jointhe program.30 NOVEMBER/DECEMBER 2009 LEDsmagazine.comPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

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Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSlighting | OUTDOOROutdoor LED lighting benefits from PG&Eefforts, but health concerns are surfacingThe California utility PG&E has added LED lighting to its rate schedule, but people are starting todiscuss whether cool-white lighting is a great idea. BRIAN OWEN and TIM WHITAKER report.Asignificant obstacle to the adoptionof LED street lighting has been overcomethrough the efforts of PacificGas & Electric (PG&E), the California-basedutility. PG&E has removed a major roadblockfor roadway lighting in its new rate schedule,which recognizes and acknowledges thefinancial benefits of LED technology. TheElectric Schedule “LS-2 – Customer-OwnedStreet and Highway Lighting” (see www.pge._____________com/tariffs/ers.shtml) lists the rates chargedby PG&E for different lamp types, and is thesum of the facility charge and the energycharge. Monthly facility charges include thecosts of owning, operating and maintainingthe various lamp types and size. Crucially,because LS-2 now lists LEDs at a separatelamp type, it reflects the energy savings ofLED compared to other lighting technologies.LS-2 is applicable to lighting installationswhich illuminate streets, highways,and other outdoor ways and places wherethe customer is a governmental agency andowns the lighting fixtures, poles and interconnectingcircuits.Although LS-2 was effective May 1, 2009,there was no mention of it at September’sIES Street and Area Lighting Conference(SALC), where the announcement wouldhave surely captured the attention of all inattendance, since everyone in the industryhas recognized this as a major barrier.PG&E leadership has set an example forutilities across North America and createda path for municipalities to follow. It alsooffers a vehicle for dialogue and discussionin dealing with their local utility when consideringLED street lighting, especially whenattempting to derive the associated financialbenefits that demonstrate that LED makes“financial sense” in order to develop a realisticpayback scenario.Mary Matteson Bryan, lighting portfoliomanager for PG&E’s Emerging Technologies(ET) group, explained to LEDs Magazine howthe new schedule was developed: “As part ofPG&E’s Customer Energy Efficiency department,the ET group performed a numberof assessments of LED street lighting from2007 to 2009. Evaluations of energy savingsand lighting performance were positive.“In a collaborative effort between PG&E’sET group, its Lighting Energy Efficiency programstaff, and the PG&E Street and AreaLighting group, PG&E began efforts toincorporate LED street lighting as a productoffering to customers. In the summerof 2008, the team started strategizing onhow to develop a tariff for customer-ownedLED street lights. Street lights are billed aflat monthly fee based on the lamp size andwattage and an assumed 11 hours per nightof operation.“The initial issue identified was that LEDstreet lights do not come in standard wattagesor sizes. The team developed the idea touse ‘wattage categories’ for the LED streetlights(for instance 50–55W category). Thenext issue was how to validate the power(watts) of the street light in order to assign itBRIAN OWEN is a contributing editor of LEDs Magazine and Program Advisor to greenTbiz,which facilitates the LED City Toronto initiative and is an Energy Star partner. He is activelyinvolved in the development and operation of energy conservation programs for government,municipalities and utilities. Email: brian@greenTbiz.org.An evaluation study of solar-powered,LED-based outdoor luminairesby the Lighting Research Centershowed positive results. More: ___ www.ledsmagazine.com/news/6/10/4.to the correct rate schedule category. The ETteam identified the recently adopted IESNALM-79 test procedure as a means of providinga consistent, verifiable method for measuringthe power of the entire LED streetlightfixture for use in assigning to a rateschedule category.“With these basic parameters, the LEDStreet and Area Lighting group developedthe detailed wattage categories and monthlybilling rates for amendment to the currentrate schedule. The rates were subsequentlyapproved by the California Public UtilitiesCommission (CPUC).”Dark-Sky says boo to blue lightThe rapidly expanding use of bluish-whiteoutdoor lighting threatens visibility at32 NOVEMBER/DECEMBER 2009 LEDsmagazine.comPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSlighting | OUTDOORnight and jeopardizes the nocturnalenvironment worldwide, according toa statement (www.ledsmagazine.com/news/6/10/8) ________ released by the InternationalDark-Sky Association (IDA).The statement says that developers oflight sources should be required to refinetheir products to limit blue-light emissionat wavelengths shorter than 500 nm. TheIDA also discourages the use of bluish-whitelamp sources with a correlated color temperatureabove 3000 K. The IDA is a US-basednot-for-profit organization aiming to preserveand protect the night-time environmentthrough environmentally responsibleoutdoor lighting.The advisory notes that the “laudable”demand for energy-efficient lighting hasresulted in a new generation of electriclight sources such as LEDs and inductionlamps that emit a cold, bluish-white light.Although LED lighting is mentioned specifically,LEDs Magazine was told by PeterStrasser, IDA managing director, that IDA isnot taking an adverse position toward anyspecific technology.IDA states that the bluish-white light canhave significant environmental impact,causing light pollution and sky glow, as wellas glare and the compromising of humanvision in the aging eye. “In addition, bluelight has a greater tendency to affect livingorganisms through disruption of theirbiological processes that rely upon naturalcycles of daylight and darkness, such as thecircadian rhythm,” says the statement.IDA published a graph showing the photopicsensitivity curve of the human eye,which peaks at 555 nm. Light in the blueportion of the color spectrum below 500 nm,such as that produced by a phosphor-converted“blue-rich” LED, has a limited usefulnessto the human eye. This blue light alsofalls within the circadian-rhythm sensitivitycurve, which peaks at around 470 nm. (Itis important to note that the human eye usesscotopic vision under low-light conditions,and mesopic vision in intermediate conditions.The peak sensitivity for scotopic visionoccurs at around 520 nm.)The IDA claims that some manufacturersand government agencies are “misrepresentingthe visual effectiveness of these bluishwhitelight sources, and the environmentalimpacts are not being considered.” Becauseof this, the IDA is encouraging governmentand other concerned parties to support additionalscientific research on this subject,stating “Research will help to understandfully the impact of bluish-white light, andguide the evolution of lighting technologyto protect human health and the nocturnalenvironment while providing safe and efficientoutdoor lighting.” An IDA white paperon this subject is expected soon.LRC’s Unified System of PhotometryResearchers at the Lighting Research Center(LRC), Troy, NY, have demonstrated in multiplefield tests that, by using what they describeas a Unified System of Photometry, a streetlighting system can be designed to reduceLED LightingGL - MR /BR / SP Series /T8 Tube / Lihgt Bar /LED Driver(PFC)_____________________Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSDistribution Date:March 2010Ad Close: 2/1/10Mat’l Due: 2/8/10LED SuppliersDirectory 2009Suppliers Directory 2010Integrated Advertising 24/7, 365 Days a Year!Keep Your Message in Front of LEDs Magazine’sDecision Makers for a Full 12 Months:•Recognized as an invaluable reference manual•Delivered to 31,506* global buying professionalsas the March 2010 issue of LEDs Magazine•Company Directory includes an A-Z listing of more than900 key suppliers in the LED industry•Extensive coverage of 10 major product sections, includingLED Packages & Chips, Networks & Distributors, LED Displays& Signs, Test & Measurement, LED Lighting and more•Detailed company contact and product data for hundredsof organizations•Bonus distribution at major LEDs and lighting events andconferences throughout 2010The LEDs Magazine Suppliers Directory 2010 is a comprehensiveproduct guide and vendor directory reaching buyers of LEDcomponents and lighting and display products. Advertiserswho take advantage of our Suppliers Directory integrated printand online advertising will reach key decision-makerswith their product messaging.Book YourAd Early &(Nov. 30, 2009)Lock in‘09 Rates!DISPLAY ADVERTISINGRATES AND SPECIFICATIONRATES: USD USD2009 2010Enhanced Entry $ 685 935Priority Entry $ 1315 1565Two page profi le or ad $ 7300 8030DISPLAY ADVERTISINGAs an advertiser, you’ll receive:•FREE company directory listing - both print and online•FREE unlimited product guide listings.•FREE listing cross references to your ad page.•FREE bold entries for each of your listings.DIRECTORY ENHANCEMENT OPTIONSContact your sales representative to learn more about thefollowing listing enhancements and advertising upgrades!Enhanced Listing• Logo and 75 words of text in Company Directory section• Logo alongside company name in all Product Guide sectionsPriority Listing• All enhanced listing benefits above• Entry in Company Directory section is highlighted in a shaded box• In Product Guide listing, logo is highlighted in a shaded box• In Selection Charts, the Priority Entries are highlighted• Priority Entries listed on page 1 of the Directory and highlighted in theonline Buyer’s GuideEnchancement Ad Close Date: February 1, 2010Material Due Date: February 8, 2010USD USD2009 2010Full page profi le or ad $ 4180 45981/2 page ad $ 2510 27611/3 page ad $ 2050 22551/4 page ad $ 1670 1837*Publisher’s Own DataQUESTIONS: Please contact one our sales representatives for assistance.USAMary DonnellyTel: +1 603 891 9398maryd@pennwell.comEUROPEJoanna HookTel: +44(0)117 946 7262joannah@pennwell.comJAPANManami KonishiTel: +81 03 3219 3641konishi-manami@ics-inc.co.jpCHINA/HONG KONGMark MakTel: +852 2838 6298markm@actintl.com.hkTAIWANAlice ChenSales Manageralice@arco.com.twTAIWANVicky KungSales Managervicky@arco.com.twwww.ledsmagazine.comPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSlighting | OUTDOORenergy use while maintaining or improvingperceptions of visibility, safety, and security.The Unified System of Photometry providesan objective method for optimizing thespectrum of a light source, while minimizingenergy use and at the same time maintaininggood visibility. The system was designedto characterize light at any level, includingthe mesopic level where both rods and conesoperate (see below).“In nighttime conditions, the human eyeis more sensitive to short-wavelength light,”said LRC Director of Energy Programs PeterMorante. “By replacing traditional, yellowishhigh-pressure sodium (HPS) lights with ‘cool’white light sources, such as induction, fluorescent,ceramic metal halide, or LEDs, we canactually reduce the amount of electric powerused for lighting while maintaining or evenimproving visibility in nighttime conditions.”The eye has two types of visual receptors inthe retina, namely cones and rods. The currentsystem of photometry—the measurement ofvisible light in terms of human perception—A recent scientifi c paper confi rmed thatexposure to a low level of blue light canbe as effective in treating symptoms suchas mood swings and low energy levels asexposure to the intense bright white lightthat is used in traditional light therapy.This enables the use of smaller, portable,LED-based devices, such as this Philipsproduct. More: www.ledsmagazine.com/press/20343._________is based on how different cones respond to differentwavelengths. Cones are the dominantvisual receptor under photopic (daylight)lighting conditions, while rods function primarilyunder very dim (scotopic) conditions.According to Morante, it is necessary toredefine the luminous efficacy functionsneeded for nighttime applications whereelectric lighting is used, and both rods andcones contribute to vision (mesopic conditions).The LRC’s Unified System of Photometrywas designed to characterize light at anylevel, including the mesopic level.LRC Director Mark Rea says researchersaround the world are also concluding thatthe current system of photometry could usesome updating to better characterize lightsource performance under nighttime conditions.Rea says that the International Commissionon Illumination (CIE) will be releasingits own form of unified photometry foroutdoor lighting. See www.ledsmagazine.com/news/6/11/8 for more references onthis subject.Impressive.LEDs require superior protection to ensure reliable operationand long performance as lighting technologies in theaerospace, automotive, electronics, medical and militaryindustries continue to advance.And the bridge is nice too.SCS Parylenes can be applied to virtually any surface materialto create an ultra-thin, pinhole-free, conformal coating withsuperior moisture, chemical and dielectric barrier properties.Additionally, SCS Parylene coatings are optically clear, so thecoating does not reduce the color or lumens output of LEDs. Aselectronic packages are exposed to extreme environments, SCSParylene HT® offers long-term UV and thermal stability (up to450°C), higher than most industry standard coatings.Contact SCS for more information about our innovativesolutions for your LED technologies.World Headquarters (US): 317.244.1200Europe: 44.1483.541000Japan: 81.426.31.8680Singapore: 65.6862.8687www.scscoatings.com/lightingComputerized LED lighting, Bosphorus Bridge, TurkeyPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSRegister by December 11 to Receive $200 OffFREEEXPO PASSTHE BIGGEST EVENT TO DATE!Register by December 11 to Receive $200 Off the Regular Conference Price.Go to www.strategiesinlight.comSPECIAL OFFER TO RECEIVE FREE DRAGON DRIVENEW!Solid-State LightingInvestor Forumfor venture capitalistsand investmentbankersThe Longest-Running and Largest HB LED & Lighting Conference + ExhibitionFebruary 10-12, 2010 • Santa Clara Convention Center , Santa Clara, CA USAFEATURED SPEAKERS FROM HB LEDMARKET CONFERENCE INCLUDE:KEYNOTE:Derry BerriganPrincipalDBLD Sustainable Lighting DesignPRESENTED BY:James BrodrickLighting Program ManagerUS Department of EnergyCary EskowDirectorAvnet LightSpeedRobert SteeleDirector of Optoelectronics ProgramsStrategies UnlimitedFEATURED SPEAKERS FROM LEDSIN LIGHTING CONFERENCE INCLUDE:Ted KonnerthPresident and CEOEgret Consulting GroupLars R. BylundProfessor of Light and EnergyBergen School of ArchitectureFLAGSHIP MEDIA SPONSOR:OWNED & PRODUCED BY:ENTERING A NEW ERAFOR LED MARKET GROWTHPARTICIPATE IN THE 11TH ANNUAL CONFERENCE & EXPOFOR THE HB LED AND LIGHTING INDUSTRYHB LED Market Track - Main Conference• Preview the HB LED Market Overview and 5-Year Forecast byStrategies Unlimited, the world‘s leader in photonics market research• Learn about the latest trends in LED-based illumination from innovativeSSL manufacturers• Exploreemerging HB LED applications with the foremost industryexperts• Understand the latest developments in LED technologyLEDs in Lighting Conference• Hear the results of the new Strategies Unlimited market study onLED luminaires and replacement lamps• Discover how to use LEDs in building designs from leading lighting designersand architects• Increase understanding of truth in labeling of LED lighting products• Learn how to specify LEDs in lighting designs• Get insight into financing lighting projects• See the latest generation of LED products and interact with LED manufacturersVisit www.strategiesinlight.com for up-to-date information on the conference, exhibitors, and other event activities.Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSlighting | SAFETY CERTIFICATIONNavigating the product safety certificationprocess for solid-state lighting productsWith proper planning, it is possible to effi ciently navigate the testing and certifi cation waters andlaunch high-quality LED products into the rapidly changing lighting market, writes TODD STRAKA.Product safety compliance is alegal requirement worldwide,and is a necessity when introducingnew solid-state lighting productsinto different markets. In theUSA, according to the requirements UL 1573of the Occupational Safety & Health UL 1574Administration (OSHA), electronicequipment is deemed to be safe forUL 153use in the workplace if it is listedUL 1993by a Nationally Recognized TestingLaboratory (NRTL; see www.osha.gov/dts/otpca/nrtl/index.html). UL 48NRTLs are qualified, third-party UL 676organizations that meet the requirementsmandated by OSHA under 29UL 844UL 924CFR section 1910.7 to perform independentsafety testing and productUL 1786certification.UL 1838The process of conducting productcertification can be broken UL 2108UL 1994down into several steps. First, aUL 2388review of the product’s constructionand design is performed, whichincludes careful evaluation of specificproduct information, includingthe bill of materials, applicableUL 1310ratings of the individual componentsand materials, product design drawings,and spacing and dimensionalrequirements. From the review of all submittedinformation, it is then possible to determinethe appropriate testing that will berequired to sufficiently satisfy the requirementsstated in the applicable standard(s).Next comes the actual product testingphase, which is performed in accordancewith the requirements of the applicablestandard(s). Such tests may include temperature,electrical, dielectric, strain relief,StandardUL 1598CSA C22.2 # 250 LuminairesProduct TypeFixed LuminairesStage & studio lightingTrack lightingPortable LuminairesPortable electric lampsSelf-ballasted lamps and lamp adaptersSpecialty LuminairesElectric signsUnderwater lighting fi xturesFixtures for use in hazardous locationsEmergency lighting and power equipmentNightlightsLow-voltage landscape lighting systemsLow-level path marking and lighting systemsLow-voltage lighting systemsFlexible lighting productsPower SuppliesUL 1012 Power units other than Class 2Class 2 power unitsThese product safety standards still apply for LEDlighting, but evaluations are now conducted incorporatingUL 8750 – Safety Standard for LED Lighting.environmental (wet location), and mechanicaltests, among others. Step three includesthe creation and issuance of the formal testreport and “authorization to mark” (ATM),which grants the manufacturer permissionto label the product with the applicablesafety mark from an NRTL (an examplewould be the ETL Listed mark fromIntertek).Finally, the manufacturer must agree toTODD STRAKA is Director – Lighting Services with Intertek (www.intertek.com), Cortland, NY.participate in the NRTL’s followupservices program. This typicallyinvolves an initial audit of the manufacturingfacility, as well as periodicmanufacturing facility inspectionsto ensure consistent design,production, and labeling of the product.It is also necessary to maintainand update files to remain currentwith the latest revision of the applicablestandards.Product safety standardsExisting lighting safety standardsstill apply for LED lighting, but evaluationsare now conducted incorporatingUL 8750 Safety Standard forLED Lighting. The requirementsfound in UL 8750 are intended tosupplement those found in the existingstandards that relate to lighting(see table). For example, UL 1993covers self-ballasted lamps and lampadapters, and now includes replacementLED lamps. The third edition,published in August 2009, addedrequirements covering LED drivercircuitry, and added requirementsand limits for LED light sources. UL1993 is now harmonized with ANCE(Mexico) and CSA (Canada).UL 8750 covers LED equipment that is anintegral part of a luminaire, including LEDdrivers, controllers, arrays, modules and packages.The first edition of UL 8750 was releasedin May 2009, and a revised version was publishedin September. After a further commentperiod, the final standard is expected to bepublished before the end of 2009.In North America, product safety standardsare published by organizations suchas the American National Standards Insti-LEDsmagazine.com NOVEMBER/DECEMBER 2009 37Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSlighting | SAFETY CERTIFICATIONtute (ANSI), the National Fire ProtectionAssociation (NFPA), Underwriters Laboratories(UL) and Canadian Standards Association(CSA), after gaining industry-wideconsensus. NTRLs (such as Intertek, UL,and CSA) are authorized to evaluate and certifyproducts according to these standards.Each NTRL issues its own safety certificationmark, which is an equally valid indicationof compliance with the standard(s).Efficiently navigating the processWhen beginning the safety certification process,it is important to first consider whereyou intend to sell your products. Thinkingglobally from the outset may save a considerableamount of time and cost for the manufacturerin the long run. Another tip isto design with compliance in mind, whichmeans involving your certification partner atthe R&D and design phases of your product’slife cycle. Doing so may minimize potentialcompliance issues and improve time to market.During the product design phase, it isnecessary to be mindful of the main safetyconcerns with LED lighting, which includethe risk of electric shock, risk of fire, andalso biological hazards. For electric shock,UL 1310 covers Class 2 power supplies, whichoperate at 24V or below and offer reducedshock and fire hazard. UL 1012 covers powersupplies other than Class 2, which must complywith standard insulation and accessibilityrequirements. Generally, it is necessaryto enclose (or create a barrier to) live partsto prevent physical contact. It is also necessaryto insulate live parts with appropriatelyrated materials, and to utilize appropriatespacings for live and accessible parts.The risk of fire arises because of heat productionwithin LEDs. Thermal dissipation isdependent on the ambient temperature andthe thermal path design. It is necessary totake into account the proximity and spacingof LEDs, the material and design of thediffuser if appropriate, the type of enclosureutilized and its flame ratings, and the installationscenario.In terms of biological hazards, exposureto ultraviolet wavelengths (100–400 nm)is a concern. The US and Canada currentlydo not have mandatory standards or regulationsin this respect. However, organizationssuch as IESNA, ANSI, CIE, and IEC areactively evaluating these effects.Another consideration is to identify asmany product variations as possible. Thiswill allow products of similar design andconstruction to be grouped into productfamilies, which may help to minimize thetotal number of samples required for evaluationand testing, and in turn lower the totalproject certification and testing fees.Finally, as LED technology continues toadvance rapidly, it is advisable to tap intoindustry resources to help you keep pacewith ever-changing product safety and performancestandards. There are many valuableeducational resources available, includingindustry meetings and events, standardsdevelopment committees, trade publicationsand online resources.Performance testingAs LED products continue to seek widespreadadoption in the marketplace, it isalso important to remain mindful of yourspecific product’s performance levels. SomeNTRLs have the capability to alsocarry out product performance testing.Three major standards related toLED lighting were released in 2008:IESNA LM-79-08, ANSI C78.377-2008,and IESNA LM-80-08.IESNA LM-79-08 covers electrical andphotometric testing of SSL devices, andapplies to both LED luminaires and LEDlight sources to be used in retrofit or replacementscenarios. It does not cover LED modules,LED packages, or individual LEDs.LM-79 is based on absolute, rather than relative,photometry, and includes the measurementof total luminous flux (lumens), luminaireefficacy (lm/W), color (chromaticity,CCT, CRI), and intensity distribution. ANSIC78.377-2008 applies to general indoor lightingapplications. It covers the chromaticityof SSL products and specifies recommendedchromaticity (color) ranges for white LEDs,including correlated color temperature(CCT) values for SSL products such as LEDLINKSA Type C high-speed mirrorgoniophotometer for luminaire testing.luminaires and integrated LED lamps.IESNA LM-80-08 covers the measurementof lumen maintenance for LEDlight sources and applies to LED arrays,packages, and modules only. It does notapply to luminaires. LM-80 provides atest method to measure L70, the timetaken for the light output to fall to 70%of its original value. Testing is carried outat three different case temperatures over aminimum of 6,000 hours with lumen measurementstaken at 1,000-hour intervals.However, it is important to note that thisstandard does not provide guidance regardingpredictive estimations or extrapolationof product life; this will be addressedby IES TM-21-xx, which is currently underdevelopment.Another example of performance testingmight include Ingress Protection (IP) testingaccording to IEC 60529. This ensures that theproduct’s enclosure will withstand varyingdegrees of moisture and dust intrusion shouldit be placed in an environment where it will beexposed to such elements (see page 23).“Solid-State Lighting: Safety Certification Process and Performance Testing MeasurementTechniques” Originally broadcast: September 2009 www.ledsmagazine.com/features/6/9/1LED lighting standards and guidelines are now building on a firm foundationwww.ledsmagazine.com/features/6/6/738 NOVEMBER/DECEMBER 2009 LEDsmagazine.comPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSANNOUNCINGSeptember 28-29, 2010 • Frankfurt, Germany • Sheraton Frankfurt Hotel & Towers, Conference CenterEvent Overview:The Large and Growing GlobalHB LED and Lighting MarketFor 10 years, Strategies in Light® Conference & Expo has grown to be the premier annual forumfor presenting current commercial developments in high-brightness LEDs and most recently,lighting. Celebrating its 10th anniversary in 2009, Strategies in Light drew record-breakingattendance of more than 2,000 indicative that the interest in LED technology and marketsremains undiminished and the long-term fundamentals for the LED and lighting industry remainstrong. In 2008 to meet the demand for the large and growing HB LED and lighting market inJapan, LED Japan Conference & Expo/Strategies in Light® successfully debuted to more than2,700 participants. This year’s 2009 event in Japan exceeded 5,300 total participants.Join Us at Strategies in Light EuropeStrategies in Light Europe will focus on the LED industry supply chain, which results in productssuch as LED lighting fi xtures (luminaires) and replacement lamps; automotive lighting;high-defi nition LED displays; backlighting for screens in TVs and laptops; and mobile devices,among others.Discussions will cover LED systems and end products, LED light-engines and modules andthe LEDs themselves, as well as critical components such as drivers and controllers, optics,thermal management and test and measurement. Speakers will focus on issues such ascritical challenges and barriers to adoption; regulatory issues and standards; governmentsupport and funding; technology updates and roadmaps; fi nancing, and the competitivelandscape.Europe has a robust LED applications environment, ranging from automotive lighting tooutdoor signage to solid-state lighting. Moreover, all elements of the HB LED vertical supplychain are represented in Europe, ranging from substrates, to process materials and chemicals,to manufacturing equipment.Whether you are a supplier, an LED manufacturer trying to reach new customers, a designerlooking for new product information, or a buyer exploring the latest technologies, Strategiesin Light Europe can help achieve your objectives.FOR MORE INFORMATION ON THE EVENT, PLEASE CONTACT:UK Offi ceGermany/Austria Offi ce:Paul SweeneyHolger GerischInternational Events DirectorSales ManagerTel: +44 1992 656 623Phone: +49-8801-302430Email: psweeney@pennwell.comholgerg@pennwell.comWHO WILL ATTEND• LED lighting manufacturers• Lighting designers, specifi ers and architects• LED product designers• LED & lighting specialists working with:- Mobile Appliances- Signs and Displays- Automotive Lighting- Signals- Illumination- Electronic Equipment• LED makers and distributors• Energy-effi ciency organizations• Corporate R&D staff• Government regulators and policy-makers• Financial analysts, investment bankers, andventure capitalistsAPPLICATIONS INCLUDE• General lighting/illumination• Architectural and decorative lighting• Mobile devices• Outdoor lighting• Signs and displays• Automotive lighting• Signals• BacklightingWHO WILL EXHIBIT• LED manufacturers• Component distributors• Driver and controller manufacturers• Test & measurement providers• LED lighting manufacturers• Design software suppliers• Equipment and materials suppliers• Thermal management and optics suppliers• Module and light-engine vendorswww.sil-ledeurope.comUSA Offi ce:Tim CarliSales ManagerPhone: +1 650-941-3438 ext. 23tcarli@strategies-u.comPresented by:Owned and Produced by:Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSdesign forum | SMART PHONE CONTROLPutting the Smart Phone in control:using apps in embedded systemsto control LED lightingAn iPhone app has been developed to control a low-cost, two-wire, low-voltageLED color lighting system in the home, explains CARL MATTHEWS.24VEthernetBluetoothDMX512DALIPIR String #124V inc CommsString #2FIGURE 1. ML Electronics’ LED lighting control system in serialconfi guration.There is an iPhone app that allows youto use it as a spirit level or even drinkbeer from it—but have you ever consideredusing it to control the lights in yourhome or office? ML Electronics (MLE), a specialistdesign house, decided there was noreason why not, and wrote an app to proveit when they built a new LED lighting controlsystem.The iPhone and other smart phones areequipped with popular standard wirelesscommunications protocols (such as WLANand Bluetooth) and benefit from open softwarearchitectures with support for thirdpartysoftware development, so in truththere is no reason why they can’t be used asa control module.ML Electronics designers embarked onthe development of a low cost, two-wirehome LED lighting control system as a referencedesign to help us explore opportunitiesfor using control technology to makeour designs more sustainable. The designbrief was to develop a low-voltage LED colorlighting system thatcould be retrofittedinto existing standardhousings as a replacementfor, or enhancementto, conventionallighting.The system wasrequired to use onlytwo wires both forthe low-voltage powersupply and the controlsignals. In addition toallowing the systemto be programmedusing standard interfacessuch as a PC overEthernet, the designersset themselves thechallenge of creating an iPhone applicationas an alternative. The project also demonstratesthe efficacy ofan innovative PowerLine Control (PLC) protocolthat runs over a24V DC power line.HardwarearchitectureThe system is operatedusing one or moremaster controllers thataddress a number ofslaves, and each slavecontrols clusters ofthree RGB/white LEDs.The master can be controlled via Ethernet,Wireless LAN (Wi-Fi), Bluetooth, DMX512,DALI, or any custom control interface.CARL MATTHEWS is a Senior Software Engineer with ML Electronics Ltd., Salisbury, UK(www.ml-electronics.co.uk).Multi-RGB LEDsper slave unit viaexpansion boardFIGURE 2. ML Electronics’ LED lighting control system inmulti-control scheme.The slaves are connected to the masterusing a two-wire, low-voltage (24 volt) supply,and each slave is capable of controllingthe color and brightness of up to 50 watts ofLED illumination from data command signalssuperimposed on the power line. A masterunit injects control data onto the lowvoltagesupply line controlling the slavesusing the MLE PLC protocol. Each mastercan control two “strings,” each with 16slaves. These strings can be wired in parallel,so that each slave produces the same colors,or in series, allowing slaves to producedifferent output colors if desired. No earth isrequired, and there are no separate controllines, fully meeting the design brief.The iPhone applicationThe iPhone app fully exploits the “fun” side ofthe user interface, with touch-sensitive slidersto set different color levels. It also usesthe accelerometer feature to create randomshake effects and to offer a tilt control as an40 NOVEMBER/DECEMBER 2009 LEDsmagazine.comPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSdesign forum | SMART PHONE CONTROLFIGURE 3. Screen shots of the iPhone app.alternative to the sliders. Color wheel combinationswere also available.To carry out the development, the designersregistered as an iPhone App Developer—providing access to development supportfrom Apple, such as API’s and examplecode. Before taking an iPhone App to market,there is the necessary step of registeringit with the Apple iStore. Although it isan additional piece of work that needs tobe completed, it brings the benefit of openingup the iStore as a marketing gateway toa huge base of potential customers. Thereare an estimated 21 million iPhones in theworld and an additional 45 million iPodTouch devices, and Apple’s App Store hasseen over 1.5 billion downloads. It is also,by the way, a condition of the iPhone warrantythat it is only used with duly registeredsoftware.Other Smart Phone optionsWe also considered extending the applicationto other smartphone environments. Symbianis the biggest target, with close to 50% marketshare today—and rather more of the installedbase. The Blackberry is the next biggest player,and Windows Mobile–based devices are alsovery popular. An emerging alternative isGoogle with the Android OS.The only real way of writing one applicationthat could be used on all of these is todesign a web-based application so that anydevice capable of web browsing would beable to use it. However, this approach wouldeliminate the opportunity to implement the“cool” features of our iPhone app.ConclusionThe project has exceeded expectation withthe final electronics being smaller and morepower-efficient than anticipated. This meansthat the integration into standard domesticspace envelopes and housings will be aviable option. A second area that exceededexpectation is the interest we have gainedfrom partners and customers, with twoengagements to date to further develop thetechnology. The LED partnership is in earlystages but the innovation is developing ourbusiness in different directions. We are alsolooking at using smart phones as controldevices on other projects.LEDsmagazine.com NOVEMBER/DECEMBER 2009 41Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSNEW REPORT AVAILABLE NOW!ORDER TODAY!High-Brightness LEDMarket Review and Forecast – 2009An Invaluable Tool for LED Suppliers,Equipment Manufacturers, Industry Analysts, andSuppliers of Materials and Chemicals to the LED industry.REPORT HIGHLIGHTS:• Identifies all the major types of HB LED products by material type(InGaN, InGaAlP) and package type (low. medium, or high power)• Analyzes the major market applications including mobile applications,signs and displays, signals, automotive lighting, BLUs, andillumination/solid-state lighting• Delineates the worldwide markets in Japan, North America, Europe,Asia-Pacific region, and ROW• Breaks out the worldwide HB LED supplier market shares• Provides five-year market forecasts (revenue and units) for the globalHB LED market for 2009 – 2013• Compares the HB LED consumption patterns by application andproduct type by geographic regionTO REVIEW THE TABLE OFCONTENTS FOR THIS NEWREPORT, PLEASE CONTACT:Tim Carli, Sales Manager(650) 941-3438 x23tcarli@strategies-u.comwww.strategies-u.comRELATED REPORTS AVAILABLE FROMSTRATEGIES UNLIMITED:• The Market for High-Brightness LEDs in Lighting Applications—2009• LED Lighting Fixtures Market Review and Forecast—2009• LED Replacement Lamps 2009• Substrates for GaN-Based Devices:• Performance Comparisons and Market Assessment—2009World’s Leader in Photonics Market ResearchStrategies Unlimited, 201 San Antonio Circle, Suite 225, Mountain View, CA 94040 USAFLAGSHIPMEDIASOURCE:Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSPRODUCT focusTO PROMOTE YOUR PRODUCT HERE, PLEASE CONTACT JOANNA HOOK AT joannah@pennwell.comOR MARY DONNELLY (U.S. SALES) AT maryd@pennwell.comELECOSN (HK) CO., LTD.5W MR16 Dimmable LEDBulb = 50W Halogen• Direct replacement to MR16 halogen lamp• Dimming from 100% to 0 with incandescent lamp dimmer• 85% energy-saving• 45,000 hours long use-life• No CO2 Emission• UV-freeFOXSEMICONLED Light Engine for Indoor andOutdoor Applications• As light engine or integrated with a variety of light fixtures.• Lightweight (

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSlast wordReally Big LEDs will enablethe next phase of LED lighting“RBLEDs” will enable the widespread adoption of LEDs in general lightingapplications, says KEITH WARD, president and CEO of LUMINUS DEVICES.It’s been more than 45 years since the firstpractical LED was created in a US corporateresearch lab. Since then millions ofLEDs have been used in thousands of lightingapplications, and LEDs are becomingcommonplace in many applications—from street lights to medical equipment tosmartphones.Until now, virtually every application hasdeployed small LEDs (1 × 1 mm chip size orless) either as a single light source (indicatorlights, microdisplays) or as arrays of largenumbers of small LEDs (flat-panel TVs, displaylighting, video walls). That’s becausemost conventional LEDs, for all their advantages,provide fairly meager light output.Typical LEDs provide around 70–100 lm/W,depending on color temperature. Whilethis easily surpasses the 15 lm/W of a 60 Wincandescent bulb, and is on par with the 100lm/W efficacy provided by fluorescent andmany HID lights, individual LEDs are nottypically able to generate sufficient light formost general illumination applications. Still,the advantages of LEDs have overcome thedisadvantages of arranging them in arrays,and LED lighting is continuing to show up inan expanding variety of applications.The next step in LED development aimsto provide an LED that delivers 150 lm/W,nearly doubling today’s typical performance.While some prototype LEDs approach thisin the lab, it is an ambitious target and onethat strains the capabilities of small LEDsarranged in groups. At 150 lm/W, or evenat the theoretical ideal limit of around 200lm/W, a single one-watt 1 × 1 mm LED producesa fairly modest output. Significantpenetration into the general illuminationmarket requires fixtures that deliver fromhundreds to tens of thousands of lumens.While one could, in principle, build arraysof any number of 150 lm LEDs, clearly thereare significant design compromises and systemlimitations for many lighting productapplications.The solution, as created by LuminusDevices Inc., is to develop much larger LEDs,big enough so that one LEDcan suffice for many applications,and so that arrays ofLEDs can use far fewer, butlarger, light sources. You couldsay that soon the industry isgoing to have LEDs, OLEDsand RBLEDs (Really Big LEDs).It is the RBLEDs that willenable the widespread adoptionof LEDs in general lightingapplications.Over the past eight years,photonic lattice technology (PhlatLight),developed at MIT, has been shown to enablesuperior light extraction from the LED chipindependent of chip size. This has enabledLuminus Devices to develop LED chipsthat are more than to ten times larger thanother commercial LEDs by incorporatingnovel, state-of-the-art processing technologiessuch as wafer bonding, substrateremoval and advanced contact technologies.Combined with industry-leading efficaciesthrough world class materials, this isthe only LED technology able to deliver sufficientbrightness to replace traditional lightsources in mainstream applications.The projector industry has been hinderedby size, heat, fragility, environmental, andlamp-life problems commonly associatedwith mercury arc lamps. Large LEDs built onphotonic lattice technology can provide tentimes the brightness of projectors that useconventional LEDs. This has created a newclass of small, light, ultra-portable “pocketprojectors” that benefit business travelersand consumers by creating instant projectionrooms anywhere, anytime. Until now,pocket projectors, or PICOs,using conventional LED technologyhave had limited popularitybeyond niche marketsbecause of their lack of brightness.This new, large-LEDtechnology is rapidly comingto market in several brandsof extremely bright powerfulnew, affordable, small projectors… and large data projectorsas well.Large, high-output LEDswill also be highly attractive in general andresidential lighting applications. These LEDsprovide high efficiency and a full white colorpalette that is neutral and warm instead ofthe undesirable harsh white light from yesterday’sLEDs. This technology providesindustry-leading lumen output and morethan 50,000-hour lifespan.The promise of LEDs in general and displaylighting has been apparent for years.Until now there has been no technology thatdelivered the high brightness, color range,and the form factor to replace traditionallight sources in mainstream applications.Now, with the advent of RBLEDs, the LEDrevolution has begun.MORE: www.luminus.com44 NOV/DEC 2009 LEDsmagazine.comPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSYour Imagination, Our InnovationForced to Redesign?Avago has Drop-In Replacements and More!Avago’s portfolio ofHigh Power LEDproducts gives you thePrice and Performanceratio along withenergy efficiency foryour design.Avago Technologies is a world leader in the designand manufacturing of LEDs and ships billions ofproducts annually. Due to the recent changesand announcements by other LED suppliers, weare expanding our portfolio of LED products toprovide drop-in alternatives for the products otherLED suppliers are changing or obsolescing whichwill force you to redesign your board.Avago’s High Power LEDs are ideal for lightingapplications such as portable, contour,architectural, entertainment, decorative, outdoor,channel, and more.Avago Technologies offers a drop-in replacementfor these supplier products.CompetitorPart NumberAvagoPart NumberProduct Color Avago AdvantageLXHL-PW01 ASMT-AW00-NST00 1W high power Cool white ASMT-AW00-NSU00 1W high power Cool white ASMT-AW00-NTU00 1W high power Cool white LXHL-PM01 ASMT-AG00-NST00 1W high power 1W high power 1W high power 1W high power ASMT-AL00-NMP00 1W high power ASMT-AL00-NNP00 1W high power LXHL-PD01 1W high power LXHL-PL01 1W high power LXHL-PH01 1W high power For MoreInformationand to OrderFree SamplesVisit Our Websitewww.avagotech.com/hpledsPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS

Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGSANDTMComing in 2010: The Orb Optronix / Labsphere ETφ System for theElectrical Thermal and Optical Characterization of LEDsApplications:Design & Development of Products using LEDs including:LED SelectionLED QualificationLED CharacterizationLED Benchmark AnalysisLED Thermal EngineeringLED Optical EngineeringLED Electrical EngineeringLED QA/QCFeatures:Complete Electrical Thermal Optical DataAutomated Data Aquisition and AnalysisHighly LED Measurements including:Flux, Chromaticity, CCT and moreTEC Temperature Control and MonitoringDC and PWM Power Supply ControlVf and If 4-wire MeasurementPrevious Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Subscribe | Next PageABE FMaGS