5 Light Flash Modes - The tail light features switching 5 different flash modes depending on your preference by one-press, and long-press to turn on/off, Including full brightness, half brightness, warning light, fast flash and slow flash. The 100% brightness mode can last for abhout 5 hours and flash mode last for 25 hours. USB Rechargeable - This powerful tail light has internal 260mAh Li-ion battery with Micro USB charging port, can support more than 1,000 times recharge, so it is more ebergy-saving and more eco-friendly. You can use power bank to charge it and fully charged in 1.5 hours.

100yd Visible Distance - Our bike rear light uses a set of COB 24 LED beads, which is brighter than normal rear lights. And it is bright enough to keep you visible from 150yd away in rainy day or in night. Great cycling gear gift for cycling lovers!

Waterproof Bike Rear Light to Keep Your Safety - It is so important to be visible when cycling in night! Our bike tail Red LED flash light has 24 LED light beads which are low power consumption and long life, and its brightness is 10 lumen, it can keep you visible in long distance and aviod accidents in night. This taillight is IPX waterrproof so it can be used in rainy days. Enjoy cycling with our bike tail light!

Easy to Mount and Detach - With a strap, you just need to thread the strap through the 2 holes of the base and put it on the bike seat tube then fasten and stick the strap, then it is done. Pull the strap and earily remove the taillight. Easy-mount and quick-release.