Boost constant current LED driver with 1xAA,2xAA,1xCR123A, output current: 350mA,400mA,600mA,800mA optional We provide boost led driver board with specifications as ... 5V, 3.0V powered with 1xAA,2xAA,1xCR123AConstant ouput current: 350mA,700mA,1000mA optionalMulti-mode output 0%-100%, ... Strobe,SOS optionalHigh efficiency up to 85%Applications for LED candle lamp,flashlight or other similar lamps. Only ...