How Does Optronics LED Single-Face Trailer Stop/Tail/Turn Light OPT94NR
Updated 10/30/2025 | Published 02/14/2025
Question:
Hey guys: I bought these lights from you which have 3 wires, whereas my trailer has 2 wires. I assume one wire from the light is a direct ground to the trailer frame, but the light does not tell me which. Do you know?
asked by: Bob L
Expert Reply:
Hey Bob, the white wire of the Optronics LED Single-Face Trailer Stop/Tail/Turn Light # OPT94NR is the ground wire so since you have a two wire setup now it would need to run to the mounting hardware so that it will ground properly.
The black wire of this would run to your running lights and the red wire to your stoplight/turn signal circuit. It is pretty annoying that the wires aren't labeled on the light so I apologize for that.
Product Page this Question was Asked From
Optronics Single-Face LED Trailer Light - Brake, Tail, Turn - Round - Pedestal Mount - Red
- Trailer Lights
- Tail Lights
- Brake/Tail/Turn
- Round
- Pedestal Mount
- Submersible Lights
- LED Light
- 4-1/16 Inch Diameter
- Red
- Optronics
more information >
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Jameson C.
10/30/2025
Hey Bob, how did things go with wiring the Optronics LED trailer light using the white ground wire? Your update could make it easier for the next person working with a two-wire setup.