Our 5W 400 lumin led light bulb is equipped with a SMD5730 chip and a1200mA rechargeble battery that allows the device to switch on automatically when there is a power outage. Technical Specifications: Works like a normal bulb. Finger touch type and portable. Long life up to 50000 Hrs. Save up to 80% energy. High Quality, High Brightness. 2 Years Warranty. What's in the box B22 Bayonet Intelligent Load Shedding 5W Rechargeable Led Bulb x 3