EXTREMELY BRIGHT - Featuring super bright proprietary LEDs that can vividly illuminate your immediate surroundings even in total darkness. Unbeatable battery life of up to 6 hours per charge. Our bike light easily illuminates an entire road or mountain trail. EASY TO ATTACH (AND DETACH) - Installs in seconds without tools, so you’ll be up and running in no time. Extremely lightweight materials mean you won’t even feel the weight of the light on your bike. FAST CHARGING / LONG BATTERY LIFE - We’ve included a premium 1200mAh rechargeable lithium battery that’s designed to they even survived a zombie apocalypse. Fast charge with any device that has a USB port. QUICKLY DURABLE - Carefully constructed from military-grade materials that make it tough enough to withstand a 10-foot drop and weather through rain, snow or even hail. Recommended and tested by cycling pros and magazines.