The Nitelife Headtorch 580 Zoom is a super-bright, compact headlight with focus beam control to allow you to light up precise areas during the hours of darkness. Its LED delivers up to 580 lumens. The beam can be focused by twisting the lens optics, and there are five lighting modes to suit your required lighting needs. An additional red LED helps maintain night vision. It runs on either the supplied 3.7V 800Mah Li-polymer rechargeable battery or three AAA batteries, which is convenient if you’re out on the bank and have no means of recharging the battery.