KEEDA White LED Magic bulb The touch Saving Energy LED Emergency Light and Household Lighting Bulbs Rechargable Electricity Than 4 Hours Emergency Time E27 Power Outage Lighting Bulb Lamp (7W) Home emergency bulb,Save 90% energy.Light body with aviation environmental protection PC material, excellent heat dissipation Finger touch type and portable .Work like a normal bulb and Control wall plug Long life up to 50000 Hrs .Built-in long polymer battery capacity high life High qualityHigh brightness.E27 lamp base, common and convenient. Optical PMA shade, light transmission rate of 95% military grade circuit intelligent control, intelligent and efficient, without changing any of the existing circuit, can be used to recharge your batteries, like usual, and other light switch lighting, lit when power themselves, 4-5 hours of continuous illumination