1. IP66 protection level, complete protection from dust and rain, no fear of wind and rain
2. Intelligent model built-in high-precision intelligent sensor chip, can accurately detect the brakes
3. Large-capacity battery with high-efficiency circuitry, long-lasting battery life
4. The tail light will automatically light up for 3 seconds to convey the information of deceleration to the rear, increasing the safety warning
5. High brightness + optical lens, soft and penetrating combination
6. Simple installation, easy to use

Parameters:
1. Charging input:
- Ordinary model: 5V-0.2A
- Intelligent model: 5V-0.28A
2. Battery capacity:
- Ordinary model: 250mAh
- Intelligent model: 400mAh
3. Intelligent mode:
- Intelligent mode: ordinary model: none
- Intelligent model: yes
4. Brake sensing:
- Brake sensor: ordinary model: no
- Intelligent model: yes
5. Continuity time:
- Normal model: 10-100 hours
- Intelligent model: 12-60 hours
6. Gear: 6 speeds
7. Waterproof rating: IP66
8. Size: 33 x 30 x 33mm
9. Weight (including packaging): 62g