Datasheet

xlamp xm-l2 easywhite leds
Copyright © 2010 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree, the Cree logo and XLamp are registered trademarks
of Cree, Inc.
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Copyright © 2014 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree
®
, the Cree logo, XLamp
®
and EasyWhite
®
are registered
trademarks of Cree, Inc.
18
NOTES
Lumen Maintenance Projections
Cree now uses standardized IES LM-80-08 and TM-21-11 methods for collecting long-term data and extrapolating LED
lumen maintenance. For information on the specic LM-80 data sets available for this LED, refer to the public LM-80
results document at www.cree.com/xlamp_app_notes/LM80_results.
Please consult the XLamp Long-Term Lumen Maintenance application note at www.cree.com/xlamp_app_notes/lumen_
maintenance for more details on Cree’s lumen maintenance testing and forecasting. Please read the XLamp Thermal
Management application note at www.cree.com/xlamp_app_notes/thermal_management for details on how thermal
design, ambient temperature, and drive current affect the LED junction temperature.
Moisture Sensitivity
In testing, Cree has found XLamp XM-L2 LEDs to have unlimited oor life in conditions ≤30 ºC/85% relative humidity
(RH). Moisture testing included a 168-hour soak at 85 ºC/85% RH followed by 3 reow cycles, with visual and electrical
inspections at each stage.
Cree recommends keeping XLamp LEDs in their sealed moisture-barrier packaging until immediately prior to use. Cree
also recommends returning any unused LEDs to the resealable moisture-barrier bag and closing the bag immediately
after use.
Vision Advisory Claim
WARNING. Do not look at exposed lamp in operation. Eye injury can result. For more information about LEDs and eye
safety, please refer to the Cree LED Eye Safety application note at www.cree.com/xlamp_app_notes/led_eye_safety.