Cree
®
XLamp
®
4550 LEDs
Binning and Labeling
Cree XLamp 4550 LEDs combine the brightness of power LED chips with a rugged package
capable of operating in excess of half of a watt. XLamp LEDs lead the solid-state lighting
industry in brightness while providing a reflow solderable design that is optimized for
ease-of-use and thermal management. Lighting applications featuring XLamp LEDs
maximize light output and increase design flexibility, while minimizing environmental
impact.
This application note describes Cree’s procedures for sorting XLamp 4550 LEDs by color (dominant wavelength) and
brightness (luminous or radiant flux) and then lists the order codes encompassing these color and brightness groups
for easy reference.
Nomenclature
XLamp LEDs are tested and sorted into performance bins. A bin is specified by ranges of dominant wavelength and
brightness. Sorted XLamp LEDs are packaged on reels. A reel contains lamps from one bin and is labeled with its bin
code. For more information on packaging see the XLamp 4550 Data Sheet.
XLamp LEDs are sold by order codes in combinations of bins called kits. Kits include a minimum of two dominant
wavelength groups and two brightness groups. Order codes are configured in the following manner:
Kit #
Combination of
bins
0001-9999
Family
XL4550
Color
ROY
BLU
GRN
AMB
Spatial Pattern
L – Lambertian
Viewing Angle
(degrees)
100
D-AP0.00
tion Note: CL
Applica
RED
XLamp LED order codes specify package family, color, optical configuration (spatial pattern and viewing angle) and
kit number (combination of bins).
Kit number 0001 is always the order code encompassing the broadest range of color and brightness groups.
Subject to change without notice.
www.cree.com/xlamp
CREE [ CREE, INC ]
