Cree Sets New R&D Performance Record with 254 Lumen-Per-Watt Power LED

[flashflood]

If this marks the 75% efficiency point, I think LEDs can more/less stop improving for flashlights. [waiting is the hardest part]
If we currently use a 50% efficient LED; drive it at 4 watts, rejecting 2 watts, we can now drive it at 8 watts, rejecting the same 2 watts. Assuming no battery limitations, we should have tripled our light?

Yes, if LED engineers and physicists can solve droop -- the not-well-understood loss of brightness at high current. (There have been papers published just this year that claim to have figured out the cause of droop once and for all; but there's a long history of false starts here, so we'll see.)

After that, it's all hands on deck for better tint!