This adaptor plugs into the 13 pin towing electrics to allow the use of trailers or tow mounted accessories equipped with 12N/12S. 13 pin towing electrics are required for fitment. Jaguar towing electrics are capable of powering caravans, trailers or lighting boards including those fitted with rear mounted LED lamp kits. However there is a minimum current required which some auxiliary lighting may not support. Please refer to the Owner's Handbook for details of the minimum and maximum electrical loading supported.