The 200 lumen per watt efficacy barrier has just been breached by a fresh round of testing on Cree’s latest generation LEDs. Seems like just this past summer we reported the new advancements of Cree’s XP-G LED reaching a record 132 lumens per watt at the nominal drive current of 350mA and that record was also broken in December with gains of up to 186 lumens per watt under the same conditions. Cree announced via a press release that a “industry-best reported efficacy record of 208 lumens per watt for a white power LED.” Hitting 200 lumens per watt with these CREE LEDs was achieved with a color temperature of 4579k. While this high barrier has been broken, we won’t see these fall into production LED fixtures anytime soon. We’ve got the full press release after the break.
DURHAM, N.C., February 3, 2010 — 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.
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 www.cree.com.
This press release contains forward-looking statements involving risks and uncertainties, both known and unknown, that may cause actual results to differ materially from those indicated. Actual results may differ materially due to a number of factors, including the risk we may be unable to develop and release commercial products with performance ratings comparable to the development results described above; the rapid development of new technology and competing products that may impair demand or render Cree’s products obsolete; and other factors discussed in Cree’s filings with the Securities and Exchange Commission, including its report on Form 10-K for the year ended June 28, 2009, and subsequent filings.