Trailer Light Tester

This test box is an aid for testing trailer lights and electric brakes. It allows one person to visually test brake lights, tail lights, right and left turn signal lights, and electric brakes by simply connecting the test box to the front of the trailer and taking the handheld control unit to the rear of the trailer to test and make repairs as needed. This eliminates the need for two people to test, and or one person going back and forth between the vehicle and the trailer.