Own the night with Serfas' TSL-500 True Light Headlight. It bathes your way with 500 lumens of brightness without an external cord or battery pack. Recharging is simple and convenient, too. Just plug it into your computer's USB port or use the included wall charger. This great light has steady and flashing modes plus high, medium and low beams, and it includes both helmet and handlebar quick-release mounts. You also get a rechargeable Lithium-ion battery.