Features:
Battery: Built-in 1500mAh Li-polymer battery (can be recharged many times)
Charging time: about 2 hours,USB charging
Working Time: about 3-8 hours according to different using mode
Press the switch 3 seconds to turn on/off,swiftly press the switch to change modes
When the external light is bright, it will automatically dim. When the external light is dark, it will automatically light up
Package Includes:
1 x Bicycle headlights
1 x USB charging cable
1 x Strap