Giant's Numen Plus HL2 is a simple, easy to install headlight that brightens up every ride. Four super bright LEDs provide ample light, and you have your choice of high, mid, or flashing settings. The battery is USB rechargeable and offers up to ten hours of light. There's even a low battery indicator to let you know when you're running out of juice. The tool-free handlebar mount is fast to install or remove, and fastens securely to any handlebar.