... current: 350mA,400mA,600mA,800mA optional We provide boost led driver board with specifications as below, Input voltage: 0.8-3.2V ... , 1.5V, 3.0V powered with 1xAA,2xAA,1xCR123AConstant ouput current: 350mA,700mA,1000mA optionalMulti-mode ... Strobe,SOS optionalHigh efficiency up to 85%Applications for LED candle lamp,flashlight or other similar lamps. Only customization service is offered ...