licht.wissen No. 09 “Refurbishment in Trade, Commerce and Administration“

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licht.wissen 09Refurbishment in Trade, Commerce and AdministrationLuminaire replacementmakes for savingsGeneral shop lighting is another area where oldluminaires for fluorescent lamps can often bereplaced one for one by LED luminaires. Energysavings of more than 50 percent are often achievedhere.Even more energy can be saved by refurbishing thesupplementary accent lighting. Where luminairesfor low-voltage halogen lamps are installed, forexample, replacing them with LED luminaires – typicallyswapping the halogen lamps for 17 Watt LEDs –can reduce energy requirements by as much as70 percent.Take care to ensure that LED luminaires with goodcolour rendering and appropriate light distributionare used.32Sample solution9.20 m2813.00 mOld installationNew installationLouver luminaires 2 x 36 W, LLB comp.LED recessed luminairesand downlights 2 x 18 W*with microprismatic enclosureand LED downlightsNumber of luminaires 12 + 5 12 + 5System wattage per luminaire 84 W / 52 W 40 W / 21 WEffective operating hours / year** 3,600 3,600Energy / year 4,565 kWh 2,106 kWhEnergy saving 54%*Typical luminaire light output ratio approx. 70%. 2 x 3,350 lm x 65/100 = 4,355 lm, 2 x 1,200 lm x 70/100 = 1.680 lm**The effective operating hours take account of need-based dimming as well as the activation/deactivation of lights due to presence and daylight detection and constant lighting control.Energysaving54%© licht.de
Shop and salesroom lightingLight is an important tool for sales promotion: it creates atmosphere, directs attention to the merchandiseon display and underlines image. But lighting’s contribution to commercial success extends beyond sales:energy-efficient operation and low maintenance are equally important.Supermarket, boutique or greengrocer’s –whatever the store, the customer expectsan agreeable shopping experience.And lighting plays an important role in that– both in the shop window and in thesalesroom. Light arouses interest, permitsswift orientation, highlights displays anddefines the atmosphere of the salesroom.Good lighting solutions are always tailoredto the product range and its presentation.For general lighting, illuminated ceilings or[33 + 34] The coloured LED staircase lightingadds drama to the simple whitesalesroom scene. Even more variety is providedby dynamic colour sequencing control.large-format luminaires for uniform lightdistribution are recommended options.Continuous rows or wallwashers direct theeye to shelves and vertical displays. For accentuatingsales areas, directional precisionis offered by spots with different beamangles or downlights. DIN EN 12464-1recommends a minimum of 300 lux illuminancefor salesrooms and at least 500 luxfor till areas.LEDs for salesroomsThe right light colour underlines productpresentation. Cool fresh light colours aresuitable for food and high-tech presentations,for example, while warm coloursare the right choice for fabrics or bakeryproducts. Efficient LED luminaires with variablelight colours are a high convenienceoption here. The facility to switch betweenwarm and cool white light while maintainingconstant good colour rendering permitsa flexible lighting design that can swiftly beadjusted to suit changing displays. LEDlight also has no UV or infrared content anddoes not affect merchandise. Furthermore,because LEDs are not sensitive to cold,they have no problems coping with the lowtemperatures maintained in refrigeratedcounters.Cutting energy costsThe energy efficiency of lighting is an importantcriterion because lighting is a significantcost factor, accounting for 62 percentof total energy costs in non-food retail.Explain to your customers that the potentialfor savings cannot be tapped by merelyreplacing conventional lamps. It makesbetter sense to ensure that the system as awhole is well coordinated. That includesluminaires with a high light output ratio,quality lamps with a low energy consumptionrating and intelligent lighting management.It allows creative lighting productionsand at the same time saves energy if lightingis regulated according to the incidentdaylight available.Detailed information about the subjectis found in the booklet licht.wissen 06“Shop Lighting – Attractive and Efficient”.33 3429
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Page 3 and 4: EditorialModern lighting technology
Page 5 and 6: licht.wissen 04Licht im Büro, moti
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Page 9 and 10: Innovative technology for human nee
Page 11 and 12: sensor1st row of luminaires2nd row
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Page 15 and 16: 16 17lamp luminaires, the net lumin
Page 17 and 18: 18As-is analysisDesignFinancingProc
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Page 21 and 22: 22 23DALI switch makes for savingsI
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Page 37 and 38: Checklist: Lighting Installation Re
Page 39 and 40: All about light!Impartial informati

licht.wissen No. 09 “Refurbishment in Trade, Commerce and Administration“

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