Battery-free Bike Lights
Marie Donlon | September 06, 2017Reelight, a Danish manufacturer, has designed bicycle lights that activate as soon as the rider begins to pedal.
Powered by coin-sized magnets, the lights are attached to the bike’s spokes. Additionally, the lights are waterproof, switchless and easy to install.
To see the lights in action, view the accompanying video.
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We had something similar to this when we were kids that utilized a dynamo generator.