140 lumens per watt – double the efficiency of LEDs
by Vinay Gupta • March 21, 2008 • Science • 0 Comments
http://news.zdnet.com/2422-13568_22-192842.html
short video, basically it’s a pocket of gas and some kind of heating device that might be microwave-like RF device. Not coming to flashlights any time soon, but for street lighting, stadiums etc?
