Four-Way Trailer Light Tester. Free Shipping

Plug this easy-to-use trailer light tester into your tow vehicle and the LEDs light up if the wiring is working correctly for quick and easy results. The light tester fits four-way flat plugs and a small, convenient size allows it to fit easily in your glove compartment or pocket. Test your right, left, tail and brake light wiring all with one handy Air Toollight tester! Fits four-way flat plugs Male and female brass connectors Tests right, left, tail, and brake light wiring Small size fits easily in glove compartment or pocket Free Shipping