Functions: 1.lighting is provided by high quality and long life light source. 2.high definition radiation light spot. 3.power supply and charging by wide voltage(AC-90V-242V) 4.after charging,it can be used for 4 hours continuously. 5.the weight of the lamp bulb is only 80g. Specifications Voltage: 90V-240V 50Hz-60Hz Color Temp:6000k bulb power: 3W Input power: less than 5W Charging time:5 hours Power on time:4 hours Operating Environment Nvironment Temperature:-10 degree to 40 degree Atmosphere pressure:86 kPa to 106 kPa Products List Headlight 1 piece A-3 Power Supply 1 piece power cable 1 piece Please contact with me to discuss ordering options. graceliu019 at hotmail.com.Whatsapp:+86 15902040684,Skype: grace.llq You can take a look on my online shop https://www.dhgate.com/store/17977191