Review on Enhance Bike Safety with Volcano Eye Bike Tail Light: Ultra Bright Waterproof LED, USB Rechargeable, 7 Light Modes, Fits All Road and Mountain Bikes by Mike Martz

The light itself is great. Very bright and eye-catching. The problem is that the light doesn't even last 3 hours, even after a full charge. If there was a way to dim the brightness to save battery life that would be nice. I would also really like a simple red flashing option that doesn't exist. I kept trying and hoping it would last longer but it always dies after 2.5-2.75 hours. I missed the return window by 5 days or I would have returned.