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Copyright ? 2010-2013 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.
99
xlamp xp-e high-efficiency white leds
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 specifc 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.
Cree currently recommends a maximum drive current of 700
ma
for XLamp XP-E High Effciency White in designs
seeking the ENERGY STaR* 35,000-hour lifetime rating (≥
94.1% luminous fux @ 6000
hours) or 1000-ma
driver
current in designs seeking the ENERGY STaR* 25,000-hour lifetime rating (≥
91.8% luminous fux @ 6000
hours).
Please read 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.
* These lifetime ratings are based on the current ENERGY STaR Product Specifcation for Luminaires (Light Fixtures)
v1.0 (February 16, 2011) and eNeRGY STAR Program Requirements for Integral LeD Lamps v1.4 (May 13, 2011) lumen
maintenance criteria.
Moisture Sensitivity
In testing, Cree has found XLamp XP-E LEDs to have unlimited foor life in conditions ≤30
oC/85% relative humidity
(RH). moisture testing included a 168-hour soak at 85
oC/85% RH followed by 3 refow 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.
RoHS Compliance
The levels of RoHS 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 2011/65/EC (RoHS2), as implemented January 2, 2013. RoHS Declarations for this product can be obtained
from your Cree representative or from the Product ecology section of www.cree.com.
REaCh Compliance
ReACh substances of high concern (SvHCs) information is available for this product. Since the european Chemical
Agency (eCHA) has published notices of their intent to frequently revise the SvHC listing for the foreseeable future,
please contact a Cree representative to insure you get the most up-to-date ReACh Declaration. Historical ReACh banned
substance information (substances restricted or banned in the eU prior to 2010) is also available upon request.
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