Trailer Socket 13-Pin 13-Pole Socket 12V Towbar Towing Socket Vehicle End This is a 13 pin towbar electrics Socket . Black Plastic, 13-Pole, Trailer SocketEuropeStyle - Vehicle End Establish a secure connection between your towing vehicle and trailer with this 13-pole. Black plastic socket has non-corroding, shock-resistant interior design that eliminates shorting out. Ideal for use with detachable towbars as your can hide the sockets away with this product and not have the electrics on show when you are not using the towbar. This supplies power to run the caravan fridge and charge the caravan battery while you drive - ensuring you reach your destination with everything ready for use. A feed for the caravan interior lighting is also available in socket so you can use your car battery to operate your caravan lights while you are hitched-up. This will also run your road running lights on the back of your trailer / caravan. If you have a European caravan or cycle carrier then the 13 pin plug will just fit into this socket, if you have a uk type caravan, lighting board or trailer then you will need the adaptor splitter (Listed separately)