Cree Demonstrates 131 Lumens/Watt White LED

Cree, announced that its 20 mA white LED prototype has achieved an independently
verified 131 lumens/watt with a correlated color temperature of 6027 K. Cree
previously achieved 100 lm/watt with their LEDs in February 2005 and has raised
the benchmark 31 percent. (Ref: Coverage).
The measurement of the Cree’s white EZBright LED chips was confirmed by the
National Institute of Standards and Technology in Gaithersburg, Maryland. “This is the highest level of efficacy that has been publicly reported
for a white LED and raises the bar for the LED industry,”
said Scott
Schwab, Cree general manager, LED chips.