Three - phase speed adjustment Double mode power supply With touch switch control Chip - on - board led Effective
wind speed: 4.2m/s
Battery capacity: 3000mah
Battery voltage: 4v
Input: 5A-1A
Power: 1W
Power using time: weak wind - 4hours, Middle wind - 2.5 hours, strong wind - 1.2 hours
Working mode: usb port charging or built-in battery