Quantum leap in brightness & efficacy of white LEDs by Osram

http://www.osram-os.com/osram_os/EN/Press/Press_Releases/Light_Emitting_Diodes/LED-chip-record.jsp

"By improving all the technologies involved in the manufacture of LEDs, OSRAM development engineers have achieved new records for the brightness and efficiency of white LEDs in the laboratory. Under standard conditions with an operating current of 350 mA, brightness peaked at a value of 155 lm, and efficacy at 136 lm/W. White prototype LEDs with 1 mm2 chips were used. The light produced had a color temperature of 5000 K, with color coordinates at 0.349/ 0.393 (cx/cy). Potential applications include general illumination, the automotive sector and any applications that call for large high-power LEDs."

R2 peaks at 145 lumens/watt for efficacy IIRC.


Of course, that's not to say 155 lumens at 350ma isn't really impressive, because it is (unless Vf is ridiculous). Love LED's

WOW!!!


Even if on a bench any gain is a gain is a gain

Already discussed here.
https://www.candlepowerforums.com/threads/203330