Revolights is a system that creates bicycle lights activated by human pedaling. It consists of two thin-profile LED rings that mount to bicycle wheel rims. When the bicycle is in motion, the LEDs illuminate the front edge of the front and rear tires, lighting the pathway before the cyclist. When the bicycle is stopped, the LEDs blink around the front and rear tire rims, making the cyclist easily visible to motorists.
- Jim Houk, Kent Frankovich & Adam Pettler, California, USA