Description: Made of high-quality materials, durable and easy to use. The tail light can be connected to the controller or directly to the battery. With a large beam angle of 180 degrees, you can see the tail lights of electric bicycles in different directions. LED warning light, increase night cycling safety. Wonderful cycling equipment for night riding.Applicable to electric bicycles. Specification: Material:Plastic The work voltage is DC6V-60V Color:As Pictures Show Size:Cable length is 120cm(Approx.) Optional types:SM Connector,Waterproof Connector Size Chart: Tailight Size: Approx. 10.5x3.5x1.5cm/4.1x1.4x0.6in Cable length: 120cm/47.24inch Package Includes: 1 x Tailight 1 x Cable(2 Pack) Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! 3. Wish you a wonderful on-line shopping!