Trailer Light Tester Box with 12V 12Ah Battery,Remote Control Function with 98 F
Widely Compatible:Trailer light tester Box with 12V 12Ah Battery,Can test trailers directly,Including 3 types of test connectors,for 7- Way Flat (Spade) Pin,6-Way Round Pin,4/5-Pin Connectors,Perfectly compatible with standard U.S.trailer plugs.