Planet Bike Blinky 3H
The best place for an LED taillight is on your helmet, so that drivers will spot you even if there are cars obscuring the rest of you. The Planet Bike 3H has 3 eXtreme LED bulbs and a self-leveling helmet mount that Velcros into your helmet vents. Powered by a pair of included AAA batteries, the Blinky 3H can run for up to 100 hours, and be visible up to a mile.