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Cree breaks 300 lumens-per-Watt barrier

The company's III-nitride on SiC LED technology is continuing to push the boundaries of LED performance
Cree has demonstrated 303 lumens per watt from a white, high-power LED. This result surpasses Cree’s previous R&D record of 276 lumens per watt announced just over a year ago.

Cree's LEDs combine InGaN materials with proprietary G•SIC substrates to deliver high-intensity LEDs.

“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,” says Steven DenBaars, professor and co-director, Solid State Lighting and Energy Centre, University of California, Santa Barbara.

Cree reports that the LED efficacy was 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.

“Relentless innovation is a driving force at Cree as we continue the pursuit of 100-percent LED adoption,” says John Edmond, Cree co-founder and director of advanced optoelectronics. “Pushing the boundaries of LED performance is critical to enhancing LED lighting designs, and this 303 lumens-per-watt result will enable more cost-effective lighting solutions.”

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