It is a legal requirement in Australia for the lights on a trailer to operate in correspondence to the lights on the towing vehicle. This requirement ensures the safety of both the driver and other road users. Whether it’s borrowing a friend’s trailer to clean up the yard, or for a small camping adventure, bridging the gap between the tow vehicle and a trailer is easy with this SCA Trailer adapter. Designed to give supreme reliability on the open road, Supercheap Auto has a range of adaptors that will cover your towing needs. This adaptor connects a 7 pin flat socket to a 7 pin small round plug.