Helping solve the unknown. LED lights illuminate when the trailer is connected to the tow vehicle verifying that each function is working properly saving time during setup and diagnosis. The connector also has protruding wings to help with disconnecting. Upgrade any standard 4 flat to LED test! Product Features:LED test lights verify wiring continuityCorrosion Resistant TerminalsMost Commonly Used Trailer ConnectorFound On Small Boat/Utility24 inch length
