The Bring Your Own Battery Headlight is a unique and versatile headlight, designed for everything from commuting to adventuring. It plugs into the standard USB-A* port on any portable power bank, which means you can choose the size/capacity of the power bank and easily swap in a fresh power bank on the fly. Because the headlight itself doesn't need to be recharged, you can permanently bolt it to your fork crown at just the right angle, or use the handlebar mount for easy removal.