My turbo cat helmet mount was pretty lame compared to my cree homebrew. Even with a 12v upgrade NIMH 4800mah battery. So when I saw this on DX I couldnt resist = "3W Cree, Regulator, Reflector 1x18650 2xCR123A Module Set, 900mah, $11.95 , Takes both CR123A and 18650 batteries (accepted voltage: 3.6V ~ 9.0V)
- Cree P4 emitter
- Orange-peel aluminum reflector cup for even and smooth beam
- 900mAh regulator board installed beneath the emitter (3.6V ~ 9V input)"
I pulled the mr11 out of the TC, soldered in 2 wires to the back of the heat sink, then soldered the wires to the connectors. 10 minutes and a little liquid tape finished the job. Running on a 3.7v Li Ion the new light produced a super bright spot that was probably 2x as bright as the old 12v halogen without the yellow wash out. I think the li ion battery is probably 2 pounds lighter.
Just for comparison, I put this mod up against my Fenix p1d and its a bit brighter but it has a much bigger spot. I think the larger reflector in this kit really helps. I will be upgrading to a 7v batter and will post those results.
For anyone out there using MR11's, this is an exact fit. If it fits in the super slim turbo cat it shoudl fit in your setup.
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Thread: Turbo Cat LED Cree upgrade