Planet Bike Rack Blinky 5 5 LED Bicycle Tail Light 3018 1

Light your rack. Rear Rack and Seatpost Mounts included. 5 Super bright LEDs and built in parabolic reflector provide visibility up to 2000 ft. Soft touch power switch accesses flashing or staedy mode for up to 100 hours of run time. Ultra compact case is weatherproof, light weight and durable. Seat post, seat stay mounts and batteries included AAA x 2.