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 light 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
Audited Supplier 
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