There were plenty of killer bicycle lights at the shows, but none more fantastic than Magnic Lights’ contactless dynamo system. What you see here is all there is. No batteries, no external magnets and no wires.
Super strong neodymium magnets use the rim’s passing motion to generate eddy currents in a conductor, which powers the light. The science is pretty involved, but they work, and they’re perfect for bicycles: No drag, no batteries to replace and nothing else to mount to your bike. And they take just a couple minutes to install.
What’s even cooler is that the rear brake automatically brightens when you brake since the light gets closer to the rim, effectively becoming a functional brake light…
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