Bike Cycling Rear Light Intelligent Sensor Light Rechargeable Bike Saddle Rear Lamp Auto-off Smart Taillight

25-50 hours longer working time and auto-off according to the brightness and motion to save power. IP65 waterproof rating, no worry about rainy days and snowy days, it will always keep you company during cycling trip~

Feature:
25-50 hours longer working time and 3 months standby time, very long lasting.
3 lighting mode: Flash, breathing and constant.
Auto on/off according to the brightness and motion on flash mode and breathing mode.
IP65 waterproof rating, always keep you company no matter rainy or snowy days.
Strap on your bike seat post with a belt or mount on the saddle rack.

Specification:__
Material: Aluminum alloy_
Charging time: 3 hours_
Working time: 25-50 hours_
Standby time: 3 month+
Waterproof rate: IP65
Working temperature: -10-60°C
Size: 4 * 3.4 * 3.4cm / 1.5 * 1..3 * 1.3in_
Package weight: 112g / 3.9oz_

Package List:_
1 * Bike Taillight with Bracket_
1 * Mounting Belt_
1 * USB Cable_
2 * Wrench_
2 * Screws_
1 * Manual_