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. With the advancement of modern technology in the last few years there have been many that have been made that are wonderful for all your emergency preparedness needs.

A that uses the Faraday Principle has copper coils that are passed through a magnetic field when you shake the . The resulting electricity is harnessed in order to the .

The product Magnetic is the newest technology among the . One just has to shake the for 60 seconds and you will get up to 2 hours of from this magnetic .

Hydra- is a that is powered by water, rather than requiring battery power. This is inexpensive, and its versatility makes it easy to use this device at any time. What is HydraLight?

My present invention relates to and more particularly to which are operated by spring motors. In my present invention, I have designed a having an intermittent main drive.

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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