This electrical converter is designed to adapt a 4-pin vehicle plug to a 7-pin European plug. A dust cover is included on the 7-pin Euro trailer side to keep the plug clean when not in use. The plug-and-play design helps minimize the need for additional wiring or adapters. It allows connection of 4-way American flat connectors on trailers to European 7-way trailer wiring. The converter enables separation of the "stop" signal from American vehicles with a 2-wire system. Installation: a) Before connecting the converter to the vehicle, ensure all vehicle signals are turned off. b) Connect one side of the converter to the existing 4-way US flat connector on the vehicle. c) Insert the EU trailer plug into the other side of the converter. d) Check that all connections are secure. e) No maintenance is required for the adapter. Color: Black Material: Plastic Package contents: 1 x Trailer light converter Note: The above package includes only the listed item; other products are not included. Note: Lighting and display differences may cause the color of the item to appear slightly different from the actual product. Measurement may vary by +/- 1-3 cm.