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
0
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.
expert reply by:
Robin H
0
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 >
Featured Help Information
Miscellaneous Media
Continue Researching
- Q&A: Correct Replacement for Glo Brite Marker Lights 118A and 117R
- Article: How to Tell the Weight Rating of a Trailer Axle
- Q&A: Replacing Horse Trailer Lights
- Article: Trailer Lighting Requirements
- Q&A: Recommended LED Upgraded Taillights for a 2002 Aliner Camper
- Q&A: Recommended Center Cap for a Aluminum AM03 Series Black Machined Trailer Wheel
- Q&A: GloBrite 126R/126Y Red Replacement Light
- Q&A: Best Replacement For Dometic 94002BP Water heater In 2021 Grand Design Reflection
- Q&A: What is Difference between Trailer Mate and Curt Hitch for 2026 Hyundai Palisade
- Article: Trailer Wiring Diagrams
- Article: Wiring Trailer Lights with a 5-Way Plug (It's Easier Than You Think)
- Article: How to Adjust Your Trailer Brakes | The Ultimate Guide
- Article: What are the Common Types of Propane Fittings Used on RVs?
- Article: Holiday 2025 | Staff Picks for Real-Life Adventures
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.