The Planet Bike Superflash Tail Light is a legend among tail lights. Incredibly bright with visibility up to 1 mile thanks to a watt power LED plus 2 eXtreme LEDs, it's exactly what you want for visibility's sake. Compact, weatherproof, and extremely lightweight, the Superflash is plenty tough and built to last. It features a run time of up to 100 hours (powered by 2 AAA batteries, included) and sports a bike mount as well as a clip mount for ample versatility in mounting options. Don't leave home without it! Watt Power LED plus 2 eXtreme LEDs for visibility up to 1 mile Two modes: attention-grabbing Superflash and steady Highly visible, even in daylight Ultra-compact vertical design Soft touch button is easy to use, even with gloves on Up to 100-hour run time on 2 AAA batteries (included) Weatherproof Includes bike mount and clip mount for multiple mounting options Weight: 75g (with batteries)