Review on Cyclepartner Discovery-3000 3000 Lumens Mountain Bike Light for MTB with 8800mAh Battery Pack – Up to 7 Hours IP65 Waterproof, Enhanced Visibility with 4LED Ultra Powerful Beam by Trevor Garrett

Love this light. I can't give 5 stars for two reasons. First, the helmet attachment system is not very good. The steering system works. Second, the light is as bright as you need it and even brighter. In my first test, the battery lasted 8.5 hours from full to full discharge at maximum brightness. The only wish I have is for the light to be a little more directional than it is. You get all the light right in front of you, not as far away as other light sources. But for the price and the brightness I would buy it again. I just started using it so no long term observations