Seller notes

Make testing light brakes on your trailers super easy! Trailer light Tester Box powered by 18v Milwaukee Drill Battery Has 7 Blade RV Plug & 4 flat plug Drill battery regulated down to 12v Can test -Blinkers/Brake Lights -Running Lights -Electric Brakes -Reverse Lights Battery not included Can make them for any other drill Battery just send a message...

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