Boost constant current LED driver 1)Vin:0.8-3.2V, ... )Iout: 350mA,400mA,600mA,800mA 3)High efficiency We provide boost led driver board,Specifications as below, 1) Input voltage: 0 ... MOQ is 1000 units.Paypal is welcome. 1.5V, 3V Boost LED driver board with 1xAA,2xAA,1xCR123A