The cable set for car trailers with a cable length of 6.0 meters is an electrical connection cable for the electrical connection between the towing vehicle (car) and the trailer. The cable set enables the transmission of electrical current between the vehicle and the trailer in order to operate the required lighting and signaling devices on the trailer. The cable set is designed to supply the reversing light and the position lights of the trailer. The headlight is activated when the towing vehicle is reversing to improve the visibility of the trailer when reversing.