XINDELL 24 LED ATV Round Reflectors, Tail Brake Stop Marker Light, for Truck Trailer Motorcycle, 1 Pair (Red) Easy install, safety and weahterproof Size about (Diameter x Depth): 60mm x 9.5mm Voltage: 12V Fit for universal motorcycle, car, truck, etc Connection: 3 wire(Ground: black Small for 50% light: Blue Turn signal or brake for 100% light : red)