1. Push-button control of the backlight, three-dimming, USB charging, 8 hours of battery life
2. Joints card wheel design, lighting angle freely adjustable, chest light can be adjusted from 0-90 degrees at will
3. Front and rear double battery compartment design, front and rear independent batteries, more durable
4. Life-level waterproof, thickened waterproof circle design, to protect the circuit is not easy to enter the water
5. Weight: about 175 g
6. Back light size: about 10.8 x 8.8 x 2.4 cm
7. Chest light size: about 7.3 x 8.6 x 4.9 cm

Parameters:
1. Main material: steel + ABS
2. Charger specification: 5V/1A
3. Backlight gear: 1 speed
4. Chest light gear: 3 gears
5. Back light discharge current: 100ma
6. Chest lamp discharge current: 50ma
7. Working time of backlight: about 8h
8. Chest light working time: first gear about 5h / second gear about 8h
9. Power cord length: 60cm
10. Charging time: about 2h
11. Battery capacity: front light 300 mah; rear light 700 mah