Cree, Inc. recently demonstrated 303 lumens/W from a white high power LED. Reaching the landmark achievement faster than predicted, this result surpasses Cree’s previous R&D industry best of 276 lumens per watt announced just over a year ago.
Cree reported that the LED efficacy was measured at 303 lumens/W, at a correlated color temperature of 5150K and 350 mA current. Standard room temperature was used to achieve the results.
