Datasheet
XLAMP XM-L 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 © 2010-2011 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree, the Cree logo and XLamp are registered trade-
marks of Cree, Inc.
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NOTES
Lumen Maintenance Projections
Cree currently recommends a maximum drive current of 1500 mA for XLamp XM-L white in designs seeking the ENERGY
STAR* 35,000 hour lifetime rating (≥ 94.1% luminous ux @ 6000 hours) or 25,000-hour lifetime rating (≥ 91.8%
luminous ux @ 6000 hours).
Please read the XLamp Long-Term Lumen Maintenance application note for more details on Cree’s lumen maintenance
testing and forecasting. Please read the XLamp Thermal Management application note for details on how thermal design,
ambient temperature, and drive current affect the LED junction temperature.
* These lifetime ratings are based on the current ENERGY STAR Solid State Lighting Luminaires V1.1 (December 12,
2008) and ENERGY STAR Integral LED Lamps V1.0 (December 3, 2009) lumen maintenance criteria.
Moisture Sensitivity
In testing, Cree has found XLamp XM-L LEDs to have unlimited oor life in conditions ≤30ºC / 85% relative humidity
(RH). Moisture testing included a 168 hour soak at 85ºC / 85% RH followed by 3 reow cycles, with visual and electrical
inspections at each stage.
Vision Advisory Claim
WARNING: Do not look at exposed lamp in operation. Eye injury can result. See LED Eye Safety at http://www.cree.
com/products/pdf/XLamp_EyeSafety.pdf.