8 cells 18650 or 2 pcs 4 cell 18650--power packs.& get my batts free--. EZ plug/ unplug and recharging built in.. so about 14 vdc to use for laser and fan. had AC plug- got 2 from AixiZ housecleaning--one still works.
I'll take pics & show you optics I got w/o info.. I need to use any that work for me and sell the rest--lots of mounts too.
-the one in China owes me two pcs yellow and orange mini lab lasers-- wants to refund me w/ products.
yeah-- they don't make optics like Opt does.. not cheap either.
going dual may be more than I can handle- I want to use active cooling--fan at first --TEC only if needed. I will run them lower than you do.
I have both 8 cells 18650 or 2 pcs 4 cell 18650--