UltraFire WF-139 Rapid Charger for Li-Ion batteries 14500 / 17500 / 17670 / 18500 / 18650 / CR123A UltraFire WF-139 .US customers recieve also a Mains Power Lead Cable Compatible with 10430, 10440, 14500, 16340 (CR123A)17500, 17670, 18500, 18650 batteries Input AC110v-240v 50-60Hz (World voltage, US Plug installed)/DC12v 2A DC4.2v 4x 500mA output. For CR123A Li-Ion batteries suitable!! Red light: charging process / Green light: Charging process ended