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Can I Ground the Opti-Brite LED Work Light to a Trailer's Ground Wire?  

Updated 10/26/2025 | Published 10/23/2025

Question:

I am looking at getting a pair of floodlights to use as back-up lights for my boat trailer. I know that i can get power from the reverse pin on my 7 pin trailer plug on my truck. Do I just use the ground wire on my trailer for the ground on the light?

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Expert Reply:

Yes, you can Jim. You'll definitely need to use your trailer's ground wire if you have an aluminum framed trailer. The Opti-Brite LED Work Light item # TLL48FB you were looking at can also be ground directly to the trailer's frame if it's steel. These lights measure 4-1/8" wide x 6-3/8" tall x 2-1/8" deep and have an output of 617 lumens.

What's your trailer's frame made of?

expert reply by:
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Jerred H
Opti-Brite LED Work Light
Opti-Brite LED Work Light
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Jim B. profile picture

Jim B.

10/23/2025

My trailer is a steel pontoon boat trailer.

Jerred H. profile picture
Etrailer Expert

Jerred H.

10/23/2025

@JimB Ok, yeah you can just ground the light to the frame if you want to.
Jim profile picture

Jim

10/24/2025

@JerredH I have another question. What gauge wire should I run? I was reading that 14awg was recommended, but led lights don't really have much draw. So, would I need to run 14awg or can I run the standard 16 awg?
Jerred H. profile picture
Etrailer Expert

Jerred H.

10/26/2025

@Jim It depends on how long of a run of wire you're going to have. If your trailer's under 20' feet long then yes you'll be alright using 16 Gauge wire like item # 16-4B-1. Anything longer than that and you'll need to worry about voltage drops.
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