Halonix Rechargeable Emergency Inverter LED Bulb B22 is a quality LED bulb that consumes low power protecting the environment. The bulb has a charging time of 8 to 10 hours to give a 4-hour backup.

Guo Hui built a tiny rechargeable battery into the extended base of a 40 watt LED bulb, which allows it to charge whenever it’s screwed into a standard socket.