Well I just got my brand new L4 in from Tactical Warehouse..great folks !! what is the white dot stuck on the side of the flashlight reflector for ??? its on the top metal ring on the outside.
That's so you know the LED is white. They do the same for the A2...like you can get a red dot for an A2 with red LEDs. As of right now, there aren't any other colors for the L4 though, that i know of.
Theorectically, they can make L4s in green, blue, and white.
As far as I'm aware, Lumileds does not make a 5W LS in NUV, violet, yellow, amber, orange, orangish-red, or red.
Just green, blue, royal blue (maybe), and white.