Portable Trailer Light Tester 
Thexton’s Portable Trailer Light Tester has alligator clamps so it can be used with any power source. It has an 8 amp breaker for circuit protection. Ultimately giving you the freedom to check the lights by yourself quickly.
Tests-left and right turn signals, taillights, and brake lights.
Can also test electric brakes, reverse lights, and auxiliary lights if combined with THX839 7 blade to 4 flat adapter.
Handheld and lightweight.
Product UPC: 00872100838
Availability: In stock.