Rated voltage: AC110-240V, DC12V Power: 6W USB: 5V output Charging time: 24H approximately Duration time: 5-10H Rechargeable battery: 6V 4.5AH rechargeable lead-acid When the unit is being charged, the red Led indicator will be on When the power fails, the led light can be automatically on Recharge every three months, if the light is not used for a long time