• ROCKBROS High Lumen COB Led and 200-degree wide angle design will make you more visible for other road users at night or daytime. It will be great for your extra security in riding
  • With the super bright lights, Automatic ultra-bright bicycle rear light is highly visible from a distance, really catch attention to enhance your safety
  • Smart Light Sensing Function: In Fast Flash and Breathing mode with light sensor, the flashing light will turn on automatically in low brightness and turn off in day light. Save your time to switch the bike tail light
  • USB Rechargeable Long Llife Battery: Built in Safety 400mAh Polymer lithium battery and Energy-saving designs, the rear bike light run time can be up to 50 hours. The taillight can be easily charged by charging cable via computers, chargers, or power bank
  • Easy Mount and Removable: Saddle mounting bracket and adjustable silicone strap provided, make the bicycle rear light flexible to quick install or detatch on bicycles, seat post, helmet. unscrews from the mount cap for recharging

Products Detail:

1. full aluminum alloy 6061 chassis.

2. automatically switch on / off depending on the light intensity and movement.

3. Automatically switch to sleep mode to save energy.

4. seat rail assembly

5.4 flash modes.

6.20hrs + execution time.

7,400mah li-ion rechargeable battery.

8. USB charging.

9. battery indicator (flashes every 6 seconds)

10. compact and lightweight design (55g).

11. waterproof ipx6.

Bicycle Smart Brake Sensing Light Auto Start/Stop IPx6 Waterproof LED Bike Cycli