trademarks of Cree, Inc.

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xlamp xH-G led

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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 specific 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 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.

moisture sensitivity

In testing, Cree has found XLamp XH‑G LEDs to have unlimited floor life in conditions ≤30 ºC/85% relative humidity

(RH). moisture testing included a 168‑hour soak at 85 ºC/85% RH followed by 3 reflow 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. See the LeD eye Safety application note at

www.cree.com/xlamp_app_notes/led_eye_safety.