This electrical adapter allows you to convert a US 7-pin vehicle adapter to a European 13-pin plug. Plug and play design minimizes the hassle of installing new internal wiring, no other adapters are required. Includes dust cover on the Europe trailer side with 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 American vehicles. Wiring of 7-American flat connectors on trailers with 13-European trailer wiring. Installation instructions: a) Connect the adapter to the vehicle, ensure all signals on the car are off. b) Connect the adapter to the existing US 7 RV blade connector in the vehicle. c) Insert the other side of the EU trailer plug into the adapter connector. d) Ensure all connections are securely fastened. e) No maintenance is required for the electrical adapter during use. Color: Black Material: ABS Package Contents: 1 x Trailer Lighting Adapter Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.