DS47 Datasheet, PDF (11/13 Pages) Lumileds Lighting Company – power light source LUXEON® Warm White Emitter and Star

Representative Spatial Radiation Pattern
Note:
For more detailed technical information regarding Luxeon radiation patterns, please consult your Philips Lumileds Authorized
Distributor or Philips Lumileds sales representative.
Batwing Radiation Pattern
Figure 5. Typical Representative Spatial Radiation Pattern
for LXHLBW03 and LXHLMWGC.
Radiation Pattern (with optics)
Figure 6. Typical Representative Spatial Radiation Pattern for LXHLNWG8.
Average Lumen Maintenance Characteristics
Lifetime for solidstate lighting devices (LEDs) is typically defined in terms of lumen maintenance—the percentage of initial light
output remaining after a specified period of time. Philips Lumileds projects that LUXEON products will deliver on average 70%
lumen maintenance at 50,000 hours of operation. This performance is based on independent test data, Philips Lumileds histor
ical data from tests run on similar material systems, and internal LUXEON reliability testing. This projection is based on constant
current 350 mA operation with junction temperature maintained at or below 90°C. Observation of design limits included in this
data sheet is required in order to achieve this projected lumen maintenance.
LUXEON Warm White Emitter & Star DS47 (7/06)
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