Will Optronics LED Trailer Clearance and Side Marker Light Ground Wire Need to Be Attached
Updated 12/22/2025 | Published 10/27/2024 >
Question:
The trailer I have now only has the white power line ran to it. If I buy new running lights that have the power and ground line coming out the back do I need to hook up both in order for it to work or do I just hook up the power and cut the ground off?
asked by: Shawn C
Expert Reply:
Hi Shawn; you will need to attach the white ground wire on the # MCL44AB and similar lights. If you cut it off the light would not work properly. The light you have now grounds through the mounting hardware which is why you only see a single wire.
Product Page this Question was Asked From
Optronics LED Trailer Clearance and Side Marker Light w/ Reflex Reflector - 6 Diodes - Amber Lens
- Trailer Lights
- Clearance Lights
- Marker
- Rectangle
- Surface Mount
- Non-Submersible Lights
- LED Light
- 4L x 1-1/2W Inch
- Amber
- Optronics
more information >
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Robin H.
12/22/2025
Hey Shawn, how did things go after you connected the white ground wire on your trailer lights? Knowing how the wiring worked out could help others sorting through the same setup.