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How do the Hook Up the 2 Wires on the Optronics Mini Trailer License Plate Light - Chrome Plate?  

Updated 11/18/2025 | Published 11/13/2025

Question:

See photo below, I have 2 black wires. Do they both connect to the running lights circuit?

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Optronics Mini Trailer License Plate Light - Chrome Plated
Optronics Mini Trailer License Plate Light - Chrome Plated
(click to enlarge)

Expert Reply:

Hello Mike,

Thanks so much for the picture, it’s super helpful!

When installing the Optronics Mini Trailer License Plate Light # LP31CB, you’ll just need to connect one wire to your power source or running light circuit, and the other wire to a solid ground.

What kind of trailer is this being installed on?

expert reply by:
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Kate F
Part Included with Light
Part Included with Light
(click to enlarge)
Mike profile picture

Mike

11/17/2025

I thought since it’s a 12 volt direct current system it wouldn’t matter. I just wanted to make sure. The trailer is for hauling my side by side and other equipment.

Kate F. profile picture
Etrailer Expert

Kate F.

11/18/2025

@Mike Got it Mike, I would have written in as well. If you ever have any other questions in the future, you know where to find us =)

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