1. Battery: 3.7V150mah
2. Charging cut-off voltage: 4.2V
3. Discharging cut-off voltage: 2.5V
4. Input voltage: 5V
5. Made of ABS material, light weight, small size, easy to carry
6. Simple and fast car USB charging, one charge can be used for 12-15 hours
7. Easy to install, double-sided tape is firmly attached, easy to deal with speed bumps/sudden brakes
8. Assisted driving, keep the LED light project in the middle of the road, help you go straight, avoid collisions, and ensure safe driving
9. Automatic photosensitivity, LED lights are bright during the day and soft at night, suitable for any environment
10. Multi-speed time setting, press the button different times to achieve different time period settings
11. Weight: 11g
12. Size: diameter 3.2cmx height 3cm