Review on Bright Eyes Ember 400 LUMENS: Powerful, Long-lasting Bike Headlight with GoPro Compatibility, USB Rechargeable & Waterproof - Includes Free Tail Light by Andrew Jones

In this price range you will hardly be able to beat the light output and battery life of this flashlight. The included bike and helmet mounts are great and an added bonus if you also use GoPro cameras. Since the mounts are very versatile, they are easy to attach to other bikes or use a GoPro throughout the day. The included hex wrench is required to install and remove the bracket. A hex is included with most bike multis, so on-site adjustment should be easy enough and reduce the chance of someone picking up the mount if you leave it on the bike.