batteryless flashlight led bar

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‘s used in . Mobile Phone!!!! bicycle , new kind dynamo. Shakin’ Fake . grid tied inverter. current clamps?

My wife and I have seen these advertised on television — the ones you have to shake to get to work.

https://en.wikipedia.org/wiki/Batteryless_radio

https://en.wikipedia.org/wiki/Batteryless_switch

https://en.wikipedia.org/wiki/Battery_leasing

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