2 ways of power source, AC 220V or solar E27 socket.
Suitable for home emergency light,outdoor camping light,can be hanged with the hook.
The solar cell charge 10 hours under the standard sunshine , then the light can working 4-7 hours
When used as general bulb with AC,push the button to 'AC',it will charge for buit iin battery at the same time.
When use solar power,push the button to 'DC',then it will charge at day and turn on at night automatically.