On crap cell,s they will draw 1.3 amp or there abouts on good cells around 1.7 amps and after long runs it will stay with in its 2 amp regulation, when measuring current draw, do it over 2 x 18650,s not 3 there is some fake ones like from FP but the 3 x 18650 model from DX i would highly recomend. Q5 led,s throw very well and since the TR-1200 has 5 it throws very dam well.