7 RV Blade to 4 Wire Flat Adapter w/ LED Test Lights

Includes function testing LEDs. Includes dust cover. Impact and corrosion resistantrnrn The new patent-pending LED series incorporates built-in trouble-shootingrn If the trailer lights are not functioning correctly, you can isolate the problem by simply looking at the adapterrn Includes function testing LEDsrn 7 Way RV blade to 4 Wire flatrn Take the guesswork and frustration out of vehicle to trailer wiring