LED lightbulb doubles as a flashlight in emergencies

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When an electricity cut happens, homeowners can find themselves fumbling around in the dark trying to remember where they left the flashlight, never mind the batteries needed to operate it. The Bulb Flashlight charges itself while in use to provide four hours of emergency light, and can even be disconnected and used as a torch. Designed by Lin Guohui for the Museum of Modern Art Store in New York, the 6W bulb produces the same illumination as a standard 40W incandescent alternative and can be screwed into existing sockets. The lightbulb features its own backup supply of energy, which is…

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