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Nilight Rectangular Trailer Light Kit User Guide

Quick guide for the Nilight Rectangular Trailer Light Kit. Includes wiring diagrams, color-coded connection instructions, and a list of included mounting hardware.

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Quick Guide

This guide provides essential wiring and installation instructions for the Nilight 12V Rectangular Trailer Light Kit. Ensure all connections are secure and properly insulated before operating the trailer lights.

Wiring Instructions

If your trailer has an existing harness, you can connect the lights by matching the wire colors. If you are installing the provided harness, follow these connection steps:

Wiring diagram for trailer lights
Wiring diagram for trailer lights
  • Green wire: Connect to the trailer's Right Stop & Turn Light (Positive).
  • Yellow wire: Connect to the trailer's Left Stop & Turn Light (Positive).
  • Brown wire: Connect to the trailer's Running Light (Positive).
  • White wire: Connect to the trailer's frame (Negative/Ground).
  • Side markers: Connect the yellow wire of the side marker to the brown wire of the harness kit using the provided splice connector.

Hardware Components

The kit includes the following hardware for installation:

Included hardware components
Included hardware components
  • Wire Nuts
  • Wire Clips
  • Studs and Nuts
  • Self-tapping screws
  • Splice connectors
  • License plate bracket

Manufacturer information

Nilight

Brand profile

Practical help

Common problems

Lights not working

Check the ground connection (White wire) to ensure it is securely attached to the trailer frame.

Side markers not lighting up

Ensure the yellow wire of the side marker is correctly spliced into the brown running light wire using the provided connector.

Before use

  • Verify the trailer harness compatibility.
  • Ensure the trailer frame is clean for a good ground connection.
  • Identify all wires by color before making connections.
  • Check that all provided hardware (screws, nuts) is available.

Manual page author

Emily Carter

User documentation editor

Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.