1.: The E-Bike LED warning light night riding tailight is made of high quality ABS and PC and is durable and practical. 2.Strong Light: Electric bicycle light tail rear lights provide enough light to be seen at multiple angles, alerting the vehicle behind you to the presence of people in front of you, keeping you at night 3.Connector: The Bicycle rear reflector tail light comes with a 100cm long connector and a 2 pin waterproof plug that allows the tail light to be connected to the controller or directly to the battery (please check the required connector plug before purchasing) 4.Easy to Install: The bike scooter rear tail light is very easy to install, it only takes a few minutes, by loosening or tightening the screws of the e-Bike tail light, the mounting screws are spaced 80mm apart and mounted in the holes on the back of the bike. Cable length: Bicycle rear reflector tail light with 100cm long connector.