Extremely bright: Featuring super bright proprietary leds that can vividly light up your immediate vicinity, even in total darkness. Unbeatable battery life of up to 6 hours per charge. Our bike light easily light up an entire road or mountain trail. Attach (and remove) in a snap: Installs in seconds without the need for any tools so you'll be ready to go in no time. Extremely lightweight materials means you won't even feel the weight of the light on your bike. Quick charging/ long battery life: We've included a premium 1200 mAh rechargeable lithium battery which is designed to outlast even a zombie apocalypse. Rapidly charge using any device which has a usb port. Ridiculously durable: Meticulously constructed with military-grade materials, making it durable enough to survive a 10-foot drop and weather through rain, snow, or even a hailstorm. Endorsed and reviewed by cycling professionals and magazines.