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2 December 2009


Cree claims record 186lm/W efficiency from high-power white LED

LED chip, lamp and lighting fixture maker Cree Inc of Durham, NC, USA has achieved what it claims are industry-best reported R&D results of 186 lumens per watt for a white power LED.

Cree’s tests confirmed that the LED produced 197 lumens of light output and achieved 186 lumens per watt efficacy at a correlated color temperature of 4577K. The tests were conducted under standard LED test conditions at a drive current of 350mA, at room temperature.

“This result is a testament to the tremendous progress Cree has made this year,” says the firm’s co-founder & director of advanced optoelectronics John Edmond. “As energy efficiency becomes increasingly important in addressing our nation’s energy challenges, Cree is doing its best to deliver the most energy-efficient LED technology possible.”

While this level of performance is not yet available in its production LEDs, Cree offers volume quantities of what it claims is the industry’s broadest family of 100+ lumen LEDs.

See related item:

Cree demos record-efficiency 132lm/W cool-white LED, giving 345lm at 1A

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