Shake Flashlight - You Won't Need to Buy Batteries Never Again

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Shake Flashlight Torch Lamp LED Faraday Capacitor Coil Magnet Inductance Batteries How DIY

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krmak
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    krmak
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  • Updated: 29-Mar-08
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This flashlight is based on Faradays Law of Inductance: a magnet passes back and forth between a wire coil giving charge to capacitor that powers the LED. Nice thing to have in emergency situations.. It is even good for exercise ;)

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