Purpose:Demonstrate a weird but high-tech method for constructing a flashlight.
Description:This flashlight has a low voltage LED lamp but uses no battery. Instead, the power is generated by moving the flashlight back and forth along its length, causing a strong rare-earth magnet to pass back and forth through a coil. A low voltage AC current is created by this action. This current then passes through a bridge rectifier and charges a high-tech capacitor, which is used to power the light.
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Last modified on Wednesday, 13 September 2017 12:08