Design-in Guide for Xtreme drivers low wattage - Philips Lighting

Appendix 4
Overview of dimming HID system
SON lamps can be dimmed on EM and EL systems. CDO, CDMe and CPO lamps can be dimmed on
EL only!
The optimal method of dimming is with electronics.
Please allow 2-5 minutes for any system to dim down from 100% to the minimum (allowed) level
EL high-frequency dimming could introduce resonance into the discharge arc, which could result in a
disruptive end-of-lamplife, and is therefore not recommended.
Philips can offer an electronic dimmable driver for all new outdoor HID lamps.
• The new CDO lamps can be dimmed using Philips Xtreme drivers.
• CDO lamps cannot be dimmed in combination with EM gear.
Dim level/ lamp type
SON
CDO
CPO
Dimming
Method
Min dim level Ra Tc Lifetime (5%) Maintenance Time
Types Power Light 100% Min 100% Min 100% Max Max dimmed
to dim
level
level
dimmed
50% of life
50% of life
Elect 50W 60% 50% 20 8.000 >70% 4 min
Elect 45W 66% 55% 65 60 2.800 2.800 16.000 16.000 80% 2 min
Elect 60W 60% 50% 65 60 2.800 2.800 16.000 16.000 80% 2 min
Elect 90W 60% 50% 65 60 2.800 2.800 16.000 16.000 80% 2 min
Elect 140W 60% 50% 65 60 2.800 2.800 16.000 16.000 80% 2 min
Elect 210W 60% 50% 90 80 3.000 3.000 16.000 16.000 80% 2 min
Note: It is strongly recommended that an EMC filter should be used in order to provide sufficient design-in margin
concerning EMC performance in case a combination of CDO 50W gear and a CDO 50W lamp is used. Please
contact your Philips salesperson for more info on what sort of filters should be used for these circumstances.
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