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 Aaron Romero

Very cool bike lights. I bought two of these almost a year ago and they both still have good battery life, they're still as bright as when I bought them and they seem to have a pretty good waterproof rating when it rains. One feature I would really like is a single color flashing mode, so I can only set the front flashing to green, for legal reasons you can't mix red or blue with the combination on the front light. Right now I'm using solid green for the front and solid red for the back and it works really well.