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Replacing Trailer Lights That Used a Single Wire with Lights that Use Two Wires


My horse trailer has one green wire that was used for the standard old signal markers. My new LED signal marker lights have 2 wires coming out red and black how do I hook up? Thank you


Helpful Expert Reply:

Your old trailer lighting setup was designed to have the lights ground through the mounting hardware. So what you'd need to do is run the single wire from your trailer to the power wire of the new LED (should be red wire) and then run the ground of the light either to the mounting bolt or to another metal portion of the trailer.

helpful expert reply by:
Jameson C

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