ROCKBROS Q50 Dual Bracket Smart Bicycle Brake Light Bike Taillight Sensor Auto Waterproof LED Cycling Light Bike Rear Light - Black

• Light sensor: When natural light is sufficient, the light automatically goes out, when it is dark, it lights up again

• Vibration: Leave the lights for 30 seconds, the lights will automatically go out; when they vibrate, the lights will turn on again

Specification:

• Product: Bicycle Tail Light

• Model: Q5

• Material: aluminum alloy + plastic

• Waterproof: IPX6

• Charging type: USB interface

• Electricity: 400 mA

• Lighting mode: 3 types (fast flashing/breathing light/on)

• Brightness: up to 60 lumens

• Voltage: 3.7V

• The shortest battery life: 20 hours

• The longest battery life: 50 hours