PWR Mountain is a modular bike light for trail and mountain biking. But it's not JUST another bike light. Not only is it a high power headlight, but simply take the product apart and you have much more. A lighthead for other PWR bike and camping lights, plus a PWR Bank to charge devices that is also the battery for all products in the PWR range. The PWR Mountain outputs 2000 lumens of light, uses a circular beam for flood lighting obstacles from unpredictable angles, can be mounted both on the handlebar or your your helmet using the helmet/bar extension mount, incorporates twist mode operation (turn the light on and off twisting the lighthead - no buttons) and gives you the option to program your brightness and runtime through our ModeMaker app.