Features1Electric Bicycle 6V Tail Light: Safe night riding, dark night, need a good tail light. 2Waterproof Design: Waterproof performance, let you ride rain or shine and ride safely. 3Interface Insert Port: The product matching line is 1000mm long and matches the Bafang mid mounted motor. 4Interface SM Port: The length of the product matching line is 100mm, and it can be equipped with electric bicycles. The interface parameters are suitable. 5Practical: All round reminder for surrounding pedestrians and vehicles, to protect the safety of cars and riders, practical bicycle accessories.SpecificationItem Type: Electric Bicycle Tail LightMaterial: ABSProduct Size: Approx.11.5 x 4.8 x 2.8cm / 4.5 x 1.9 x 1.1in (Manual Measurement Allowable Error)Package List1 x Tail Light2 x Screw2 x Nut2 x Gasket