Rechargeable emergency LED light working as common

Rechargeable emergency LED light working as common bulb Connect to the home bulb slot same as common bulb With switch shift between AC and DC power supply Whenin ACmode, -When there is power supply, it will recharge itself and don't light - When there is a power beark, it will turn on automaticly In DC mode, no matter whether there is power supply, it will light 18white LED light Bright enought to light a 3x4m room After a full charge, it can work 4.5 hours with strong light