I have several slightly used NiteRider 16 LED taillights for sale. These are extremely bright and can run in a steady or fast flashing mode. They plug into the headlight battery of any NiteRider headlight system with Surlock plugs and will run on their 6 volt or 13.2 volt systems. Includes rack and and seatpost mounting brackets. The lenses are clear and the LEDs produce red light. New these are $60 and I'm selling these for $35.