DOE, Lawrence Berkeley National Labs and CREE

NewBie

*Retired*
Joined
Feb 18, 2004
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Location
Oregon- United States of America
By combining the high performance chip designs with commercial phosphors in developmental LED packages, Cree was able to demonstrate white LEDs with record efficacies as high as 74 lumens per watt for a 0.3 x 0.3 mm2 chip operating at 20 mA, and 57 lumens per watt for a 0.9 x 0.9 mm2 chip operating at 350 mA.

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Using high performance materials and bonding techniques to insure low thermal resistances in the critical heat flow path, a compact 1000 lumens LED lamp capable of dissipating 20 watts of heat was successfully demonstrated.


http://www.netl.doe.gov/ssl/highlights_cree.html
 
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