Lucnt SRL1 Bicycle Light
Handmade in San Francisco, the Lucnt SRL1 is a bike light that makes the roads safer for everyone. The light functions more like a car tail light and connects to your bike using magnets. It uses multiple sensors to determine when you're slowing down or speeding up and automatically brightens when you brake and turns off when the bike is sitting still. The SRL1 is the size of a thumb drive and provides 20 hours of use on a single hour of charging via USB.