I have a greenforce diamond (a bit similar to an ultrafire W200). it uses 2 CR123A batteries to drive a 700mA driver. This driver powers a luxeon lumiled LED.
The optic is a tir optic, but when I got the light (2nd hand), it was loose in the housing so the beam wasn't very impressive.
After putting the optic back in the holder, the beam was more or less acceptable.
I'm wondering if it could be modded. It is said that the burn time at 100% is about 2h, which would indicate that the batteries are about 750mAh when the led has a Vf of abuot 3.15V.
I think the minimum burntime should be at least 1h. Any suggestions?
The space for the optic is about 28mm (diameter) so it should be fairly easy to replace.
Would it make sense to replace it by a cree XPG?