User manual
4 CLD-AP20 Rev. 3
Cree, Inc.
4600 Silicon Drive
Durham, NC 27703
USA Tel: +1.919.313.5300
www.cree.com/xlamp
This document is provided for informational purposes only and is not a warranty or a specication. For product specications, 
please see the data sheets available at www.cree.com. For warranty information, please contact Cree Sales at sales@cree.com. 
Copyright © 2008-2209 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. 
Performance Groups – Brightness
XLamp MC-E White LEDs are tested for luminous ux and placed into one of the following luminous-ux groups:
Group Code
Min. Luminous Flux 
@ 350 mA (lm)
Max. Luminous Flux 
@ 350 mA (lm)
F 210 240
G 240 280
H 280 320
J 320 370
K 370 430
M 430 490
* Flux and chromaticity are measured with each LED die connected to independent drive circuits at 350 mA.
* The ux and chromaticity are measured with all LEDs lit simultaneously.
Each LED die in the XLamp MC-E Color LED is tested individually for luminous ux and placed into one of the following 
luminous-ux groups. The luminous-ux groups for the XLamp MC-E Color LED specify only minimum ux and do not 
have a maximum.
Color Group Code
Min. Luminous Flux
@ 350 mA
Red K 30.6
Green P 67.2
Blue E 8.2
White
J 80
K 100










