How to make a gravity light/gravity generator that powers an LED using the force of gravity with two falling masses turning a generator. Now with an 8 minute run time for a 2 1/2 foot / 0.75 meter drop. Raising it to the ceiling would give 15 minutes. The enhancements in this video include a circuit with rectifier diodes, capacitor and resistor that increase the LED output, along with more LEDs.
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