Make testing light brakes on your trailers super easy!

Trailer light Tester Box powered by 12v Milwaukee Drill Battery

If you would like the m18 version copy and paste this number in the eBay search bar (186295771531)

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