[SMART BREAK SENSING]: This smart bike tail light is designed with intelligent sensor, which will automatically turn on when breaking.

[UPGRADE 5 LIGHTING MODES]: This bike rear light with COB beams+PC lens provides 5 lighting modes for you to choose. They are: single flash(20-22h), double flash(17-20h), breath flash light(11-12h), swivel flash(20-22h), constant light(3.5-4h). Different modes to choose from to keep you safe.

[IPX7 WATERPROOF & POWER INDICATOR]: We have upgrade this break sensing bike light’s waterproof level to IPX7, which is suitable for any harsh riding environment. What’s more, power indicator flashes every 6 seconds to show the current power. It's a perfect bike light for night riding.

[AUTO ON/ OFF WARNING LIGHT]: Auto On/Off makes your riding safety more effective, easy and simple. the bike taillight will turn on when moving or vibrating, otherwise they turn off . Super bright braking light promptly provide warning people behind.

[EASY INSTALLATION]: This rear bike light can be mount under the bike saddle or the seat post. 3 seconds quick installation. It is convenient to rotate out from the bracket for recharging.