13-pin (vehicle) to 2x7-pin 12N and 12S (caravan) adapter, voltage is 12V. Caravan electric towing plug and socket can make your life more convenient and solve the plug not fitting problem. This trailer plug adaptor converts the 13-PIN socket on your car to the 7-PIN female socket. Plug this little adapter into the 13 pin plug and then plug in your standard 7 PIN. The trailer adaptor is treated to waterproof work , can waterproof for all road and weather conditions. And the towing socket is used Plastic housing, prevents rusting . Insert the plug, tighten and lock, convenient screw terminal, can easily replace any damaged plug. The adapter is easy to install and remove, and there is no rear cable. Provides an auxiliary charging circuit on the caravan, refrigerator or other household appliances. Waterproof and strong molded body. The NS socket ensures a correct connection and facilitates the starting and use of all the electrical equipment of the trailer / caravan.