Cree, an innovator in LED lighting, claims to have broken the 200 lumen per Watt barrier. The company of Durham, North Carolina announced that its white, power LED achieved a record of 208 lumens per Watt at a drive current of 350mA under standard LED test conditions. The LED had a correlated color temperature of 4579 K.
Cree noted in a news release that this R&D result passes a significant milestone within the solid-state lighting industry. Cree says that while this level of performance is not yet available in Cree’s production LEDs, it continues to lead the industry with the broadest family of high-performance LEDs.
“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.”