iWG&reg; 18650 Single-slot LED Flashlight Battery Charger, Output DC4.2V 300mA,US Standard This LED flashlight charger with you to make your charging more convenient when going outdoor in weekend for some short sports activities. The compatible battery of this charger is 18650,you can choose single-slot or Dual-slot. Input voltage is AC100-240V,output DC 4.2V,300mA. No 18650 bettery include in the package.