Item Type: Trailer ConnectorMaterial: PlasticInstruction:1. This fantastic Trailer Light Converter made is designed for separating "stop" signal from the Two-Wire System US Vehicle to connect your European Trailer (caravan, boat trailer, bike carriers and others). It provides a electrial solution that if you have a US vehicle with 4 way flat, and you want to hooks up a European trailer, with a 13-way Round Pin.2. If your US vehicle has the 4-Pole flat connector, and your European trailer has the 13 pin round plug, where your US car need to separate the stop and tail signals, this Trailer Wiring Adapter will need to be use.Installation Guide:1. Before connecting the Converter to the vehicle, check that all signals on the car have been turned off.2. Connect the Converter to the existing US 4 way connector in the vehicle.3. Insert the other side EU trailer plug into the socket Converter.4. Check that all connections are safety fastened.5. When exploitation, maintenance of the electrical adapter is not required.Package List1 x Trailer ConnectorPlease check your vehicle and trailer to confirm if it meets the application of the converter before purchasing.1Change the US 4pin flat plug to EU 13pin connector. Connect the US 4pin vehicle connector to the EU 13pin trailer. 2The converter has the function of separating the "stop" signal from the twowire American vehicle. 3Plug and play, minimizing the hassle of installing wiring inside, no other adapters are required. 4Designed with a dust cover on the 13pin plug side, which can keep the plug clean when not in use. 5Lightweight and portable, easy to carry. Conform to strict quality control standards, dependable to use.