led bike head light 1. 100% silicone material, 2. light weight, waterproof 3. easy use led bike head light Bright LED light, energy saving, low power consumption, long service life. Light weight, easy to use and carry, and rainproof. Two modes: fast flash,constant,off(change mode by pressing the ON/OFF button). It can be mounted on bicycle handle, seatpost, helmet, wheel, bag and so on. Flexible ...