Cree anuncia LED XM 750 Lumens
A 350 mA produce 160 lumens a 160 lumens por watio. A 2 A produce 750 Lumens a 110 lumens por watio.
"The new platform has a larger footprint than Cree’s XP family and also offers the unique combination of very high efficacy at very high drive currents. At 2 A, an XM LED produces 750 lumens at 110 lumens per watt. The thermal resistance of the XM platform is 2 degrees C per watt— an industry-leading technology breakthrough and a 350 percent improvement over Cree’s flagship XLamp XP-E LED. "
http://www.cree.com/press/press_detail. ... 1079100891