Small but mighty, the Kepler E-bike Tail Light offers up 220 degrees of visibility. Compatible with any 6V-15V e-bike system, this slick little light is loaded with 3 super bright red power LED's. Equipped with a pre-installed Bosch plug for Bosch GEN 1-4 motors, the Kepler E-bike Tail Light is ready to plug directly into any Bosch GEN 1-4 e-bike system. The Bosch plug can also easily be clipped off for direct wiring into other e-bike systems.