... CR123A, 2x16340 batteriesConstant output current: 300, 500,700,1000,1200mA optionalLED used: Cree P4/Q2/Q5 ... 18V/24V power supplyConstant output current: 700, 1000,1500,2000,3000,5000,9000mA optionalLED used: a ... a single AC/DC adapterConstant output current: 700,1000,2000,3000mA optionalLED used: 3-6 ... battery Constant output current: 10, 100, 350, 700, 1000mA optionalLED used: a single Cree Q5,R5, ...