Travel Wall AC Charger For Rechargeable Battery Headlamp Flashlight like 18650 battery -Input: AC100-250V 50-60HZ -Output: DC 4.2V±0.5V -Widely suitable for the 18650 rechargeable battery headlamp We specialize in computer, electronics and cell phone, tablet accessories Store: "Cable Link" We specialize in cable, computer, cell phone accessories Tel: (613) 680-6188