About this item Compatible Size: The installation size of 50mm/80mm can basically be installed on the rear rack of most electric bicycles on the market. To avoid failure to install, please measure the center dimension of the rear rack mounting holes before purchasing. Compatible Voltage: The normal working voltage of this electric vehicle tail light is 6V-60V, which can be connected to the electric vehicle controller or directly to the battery Connector and Cable Length: The bicycle tail light is a 2pin connector (2pin male waterproof plug), and the bus length is 100cm, which is enough to install on any size electric bicycle. Safety: IP65 waterproof rating, installing a tail light on the back of the bike can improve the safety of riding at night. The high-quality LED rear taillights have a large beam angle of 180 degrees, which is very eye-catching at night. › See more product details