I still have a bunch of old brinkman lux 1 headlamps that I never modded. I tried a cree and seoul, but learned that the reflector needed replacing, cause the beam would get too difuse, ringing, and less throwy than the lesser lumen led. I just didn't fancy changing every reflector. And wasn't impressed with the throw of the rough reflector I matched with the seoul.
But what would a rebel, xpe, or xpg beam look like when used in the old lux1 reflector.