is a commercial product by a Danish company. At present, they're the only large manufacturer of these induction-powered bike lights that I know of. I've attached some diagrams from their manual, below, showing how the lights work.
The problem with Reelights, though, is that they are mounted directly on the wheel axles. This makes the actual product small and compact (the coil and light are in one integrated unit) but has a number of shortcomings:
- The lights are very low to the ground, making them less apparent to drivers
- The arms can flex a bit as the magnets pass by them, so they have to be adjusted every so often
- The arms are kind of ugly
Separating the coil and the lights would solve these problems. The could could be mounted directly on the frame, making it smaller and less obtrusive. It would be much more secure, requiring no adjustment. Finally, the lights could then be placed anywhere on the bike, connected by wires.
One last, big drawback of Reelights is their cost. They cost anywhere from $25 for a low-end one to $85 for a fully-featured pair, plus shipping. So I'm also including some links to help people get started with making their own induction coils, circuits, and lights.
Okay, onwards to how my Reelights were set up!