The ProClass 7-Way Blade to 4-Way Flat Trailer Light Wiring Adapter is the quickest and easiest way to make electrical connections when hauling a trailer that has a different wiring configuration than the vehicle. This adapter is ideal for trailers that require a 4-way flat connection but have a 7-way blade towing vehicle. The adapter connects tail lights, brake lights, turn signals and reverse lights.The single housing design plugs into your vehicle’s electrical socket and requires no wiring. Includes a built-in LED light tester to ensure all light functions are properly working. It provides an ergonomic, durable plastic construction that is corrosion-resistant to withstand extreme weather. For the safest towing, ensure all functions are properly equipped.

• Helps make electrical connections between vehicles and trailers
• Connects tail lights, brake lights, turn signals and reverse lights
• Durable, impact and corrosion-resistant