Cree pushes through 300-lm/W LED efficacy barrier

March 27, 2014 // By Paul Buckley
Cree, Inc. claims it is the first company to break 300-lm/W LED efficacy barrier by demonstrating a white, high-power LED with a LED efficacy measured at 303 lumens per watt, at a correlated colour temperature of 5150 K and 350 mA.

Standard room temperature was used to achieve the results. The landmark result surpasses Cree’s previous R&D industry-best of 276 lumens per watt that was achieved about a year ago.

“This is truly an impressive accomplishment. Achieving this level of LED efficacy amplifies the potential for the solid-state-lighting industry to deliver smaller, lower-cost lighting solutions, and even larger-than-expected energy savings,” said Steven DenBaars, professor and co-director, Solid State Lighting and Energy Center, University of California, Santa Barbara.