Go Bright USB Rechargeable RED Bicycle Tail Light, 168 Lumens, High Intensity Rear Bike light, Fits on any Road Bike, Mountain Bike and Helmets. Easy to install with Flashing Safety Mode EXTREMELY BRIGHT Led Technology allows for Visibility from 500 feet away. High Quality ABS material is used for sturdy construction Easy to install on Bicycle Seat post, Front Handlebar or Bike Helmet. The Go Bright LED tail Light is 50% larger than most Tail Lights on the market. Safety: This Bicycle Tail Light has 6 modes: Low 6.5 hours run time, Medium 3 hours, High 2 Hours, Flashing 3 hours and Strobe 2.5 hours run time. USB RECHARGEABLE TAIL LIGHT easily recharges from your computer or any device with a USB port, Two hour charging time. 100% MONEY BACK GUARANTEE: Order now and your purchase is backed by our exclusive 1 year warranty and a 30 day money back Guarantee.