1. Charging method: USB interface 2. Battery capacity: 500mAh 3. Light source gear: 3 levels of brightness 4. Working time: about 3 hours after fully charged 5. Charging time: 60 minutes (red light during charging, green light when fully charged) 6. It can rotate 360 degrees, press and hold for three seconds to turn on the light, and it will automatically turn off after 45 minutes
