Bicycle Accessories Light Smart Sensor Brake Light Road Bike MTB Rear Tail Light

Ingratiated brake sensing techniques.
COB LED.
Full 6061 Aluminium alloy chassis.
Automatically turn on/off depending on the light intensity and motion.
Automatically switch to sleep mode to save power.
Seat rail mounting
6 flash modes.
420mAh Li-ion re-chargeable battery.
USB charging.
Charge stage indicate.
Compact and Light weight design (56g).
IPx6 Water proof.
Auto/Manual mode switch*.
Note: *Manual mode need to switch on/off the light manually.

working principle

Manual mode: manual control switch with brake sensing function;
Auto mode: light sensor, vibration sensor, brake sensor. In automatic mode,
the tail light is off and there is still a brake sensing function;