Treehugger - White LED Breakthrough: Efficiency Doubles:
"It seems like the light emitting diode (LED) world is going from one breakthrough to the next. The last one was the accidental invention of warm white LEDs using quantum dots, and now a Japanese researcher at the Meijo University, professor Satoshi Kamiyama, has found a way to make white LEDs more efficient using a purple LED and a silicon carbide substrate. This new white LED has a brightness of 130 lumens per watt!"
Via Electrifying Times Newgroup
