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Cree Breaks
200 Lumen Per Watt Efficacy Barrier

Announces another industry-best reported efficacy record of 208 lumens per watt for a white power LED

Cree, Inc. Press Release

FlashlightNews.org - 2/9/2010


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Cree XLamp® XR-E LED

Cree XLamp® XR-E LED

DURHAM, N.C. - Cree, Inc. (Nasdaq: CREE), a market leader in LED lighting, announces another industry-best reported efficacy record of 208 lumens per watt for a white power LED. This R&D result passes a significant milestone within the solid-state lighting industry as well as demonstrates Cree's relentless drive to increase the performance of its LEDs.

Cree's tests confirmed that the LED produced 208 lumens of light output and achieved 208 lumens per watt efficacy at a correlated color temperature of 4579 K. The tests were conducted under standard LED test conditions at a drive current of 350 mA at room temperature.

"We have now broken the elusive 200-lumen-per-watt efficacy barrier for a single white power LED," said John Edmond, Cree co-founder and director of advanced optoelectronics. "This is a result of improvements in blue optical output power, lower operating voltage and higher conversion efficiency. We continue to push the envelope in white LED technology to enable the highest efficiency white lighting products in the marketplace."

While this level of performance is not yet available in Cree's production LEDs, Cree continues to lead the industry with the broadest family of high-performance LEDs.

About Cree

Cree is leading the LED lighting revolution and setting the stage to obsolete the incandescent light bulb through the use of energy-efficient, environmentally friendly LED lighting. Cree is a market-leading innovator of lighting-class LEDs, LED lighting solutions, and semiconductor solutions for backlighting, wireless and power applications.

Cree's product families include recessed LED down lights, blue and green LED chips, high-brightness LEDs, lighting-class power LEDs, power-switching devices and radio-frequency/wireless devices. Cree solutions are driving improvements in applications such as general illumination, electronic signs and signals, variable-speed motors, and wireless communications.

For additional product and company information, please refer to cree.com.





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