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

Like all other Bright Eyes products I have purchased, this light is top notch. Personally I wouldn't use it as a primary light source, but as a helmet light to support my Bright Eyes 1600 lumen light (which I've been using regularly for the past 2 years) it works very well. The light has many mounting options, so this is a complete kit. Mind you, mounting it on the GoPro mount is tricky as it fits snugly, but once in place there doesn't seem to be any wobbling or movement.