XP-E-HEW Datasheet, PDF (8/11 Pages) Cree, Inc – Cree® XLamp® XP-E High-Efficiency White LEDs

XLAMP XP-E HIGH-EFFICIENCY WHITE LEDS
Notes
Lumen Maintenance Projections
Cree currently recommends a maximum drive current of 700 mA for XLamp XP-E High Efficiency White in designs seek-
ing the ENERGY STAR* 35,000 hour lifetime rating (≥ 94.1% luminous flux @ 6000 hours) or 1000 mA driver current in
designs seeking the ENERGY STAR* 25,000 hour lifetime rating (≥ 91.8% luminous flux @ 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 XP-E LEDs to have unlimited floor life in conditions ≤30ºC / 85% relative humidity
(RH). Moisture testing included a 168 hour soak at 85ºC / 85% RH followed by 3 reflow cycles, with visual and electrical
inspections at each stage.
RoHS Compliance
The levels of environmentally sensitive, persistent biologically toxic (PBT), persistent organic pollutants (POP), or other-
wise restricted materials in this product are below the maximum concentration values (also referred to as the threshold
limits) permitted for such substances, or are used in an exempted application, in accordance with EU Directive 2002/95/
EC on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS), as
amended through April 21, 2006.
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.
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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