Boost constant current LED driver 1)Vin:0.8-3.2V, with 1xAA,2xAA, ... : 350mA,400mA,600mA,800mA 3)High efficiency We provide boost led driver board,Specifications as below, 1) Input voltage: 0.8 ... 2xAA,1xCR123A2) Constant ouput current: 350mA,700mA,1000mA optional3) Multi-mode output 0%-100%, 5%-10%-30%-100%, Strobe,SOS ... 1000 units.Paypal is welcome. 1.5V, 3V Boost LED driver board with 1xAA,2xAA,1xCR123A