4.2V 0.5A 500mA 3.5mm AC Charger Power Adapter Charger for 3.7V 18650 16340 Flashlight Torch LampInput: AC 110-240 V 50 / 60HzOutput voltage: 4.2 V, current: 500 mA/0.5AOutput Adapter Port Size: 5.5*2.5mm or 3.5*1.35mmSuitable for 3.7V Li-Ion 26650/18650/14500/16340 Battery rechargeable flashlightpackWhen charging, the charger indicator is red; when fully charged, the charger indicator will turn green.Package Includes:1 x Charger(EU / US plug optional)