Trailer Light Converter European Round 7-Pin Connector To US 4-Pin Flat Plug. and high quality. Made of high quality material, durable and practical to useThis electrical converter allows to change a European style 7-pin vehicle adapter to a American style 4-pin flatPlug and play design, minimize the hassle of installing any new wiring inside, no other adapters neededIncluded a dust cover in the American trailer 4-pin plug side to keep your plug clean when not in use. Converter with the function of combining "stop" signal to the two-wire system US vehiclesWiring Euro 7-pin vehicle connector to trailer with US 4-pin flat trailer wiringTransfer the from European vehicle to American trailer/:Input (European Vehicle): Ground, Running Lights, Left Turn, Right Turn, BrakeOutput (American Trailer): Ground, Running Lights, Left turn and Brake, Right turn and BrakeThis fantastic Trailer Light Converter is designed for European Vehicle with separate turn and stop lights to connect your standard American or Trailer (caravan, boat trailer, bike carriers and others). It provides a electrial solution that if you have a European vehicle with 7 pin round, and you want to hook up a American trailer, with a 4 pin flat plug.If your have a round 7 Pin receptacle in the vehicle end, and your American trailer has a 4 pin flat male plug, where your trailer need the brake and turn signals, this Trailer Wiring Connector will need to be use.Installation Guide:a) Before connecting the Converter to the vehicle, check that all signals on the car have been turned off.b) Connect the Converter to the existing 7 pin round receptacle in the vehicle end.c) Insert the other side US 4-pin plug into the trailer's 4 pin male plug.d) Check that all connections are safety fastened.e) When exploitation, maintenance of the electrical adapter is not size:Material:ABScolour:BlackPackage Contents:1 x Trailer Light ConverterOnly the above package content, other products are not included.Note: Light 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.