Instrucrables user vbnicolau made this how-to for making a dynamo-powered bike safety light from an old relay coil and a few hard drive magnets.
6 thoughts on “Contactless dynamo bike light”
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Contactless dynamo bike light
Instrucrables user vbnicolau made this how-to for making a dynamo-powered bike safety light from an old relay coil and a few hard drive magnets.
Comments are closed.
Great idea and re-purposing of old components.
Swell!
I’ve always wanted to build something like this. I’m glad someone out there finally did it and documented it! You could probably put a second magnet too!
Nice reelight ‘clone’.