Originally Posted by
zacster
Just go to the Cree website and see if you think they are standing still. Their goal, stated or unstated, is to create lights that will replace the current compact fluorescents and have them become a household standard. Right now they don't quite compete on lumens/watt but they are getting very close. I think when you include bulb life in the equation they are about even.
since this thread is nominally about a taillight, they pretty much have been standing still for the last couple of years -- at least as far as the red leds that we can get our hands on. White LEDs have been getting lower Vf and higher output at an impressive pace. Hopefully some of that will transfer over to the other colors sooner or later