This electrical adapter allows you to convert a US 7-way vehicle adapter to a European 13-pin plug. The plug-and-play design minimizes the hassle of installing new internal wiring, no other adapters are required. Includes a dust cover on the EU trailer side with a 13-pin plug to keep the connector clean when not in use. Adapter with the function to separate the \"stop\" signal from the two-wire system in US vehicles. Wiring of 7-way US flat connectors on trailers with 13-way European trailer wiring. Installation instructions: a) When connecting the adapter to the vehicle, make sure all signals on the car are turned off. b) Connect the adapter to the existing US 7-way RV blade connector in the vehicle. c) Insert the other side of the EU trailer plug into the adapter socket. d) Check that all connections are securely fastened. e) When the electrical adapter is in use, it requires no maintenance. Color: Black Material: ABS Package contents: 1 x Trailer Light Adapter Only the above package content, others are not included. Note: Light and different displays may cause the color of the item in the picture to be a little different from the real thing. The allowed measurement error is +/- 1-3 cm.