Nilight 16AWG LED Light Bar Wiring Harness Kit

The Nilight 16AWG LED Light Bar Wiring Harness Kit is a heavy-duty, three-output 12V wiring solution with a blue-illuminated 5-pin rocker switch, inline fuse, and relay to power up to 180W of lighting safely.

This kit is built to simplify installing and switching multiple auxiliary lights on vehicles that use a 12V electrical system. It combines thick 16AWG stranded wiring, a protected power relay, blade fuse protection, and a durable laser-etched rocker switch so you can connect and control up to three light fixtures—LED light bars, pod lights, fog lamps or similar accessories—without running separate control circuits for each one.

How does this harness protect my vehicle's electrical system?

The harness includes an inline blade fuse and a power relay that act as primary safeguards against overcurrent and short circuits. When properly installed, the relay isolates the switch from the high current draw of the lights while the fuse interrupts damaging surges.

• Inline blade fuse placed on the power feed for immediate overcurrent protection
• Power relay handles heavy current so the switch carries only low control current
• 16AWG stranded wire rated to support loads up to 180W total
• Spade connectors provided for secure, straightforward connections

Can I run multiple lights from this single harness?

Yes—the Nilight harness supplies three separate output leads so you can power up to three lighting devices from a single relay and switch assembly. This reduces wiring clutter and avoids the need for multiple relay circuits while keeping each fixture's connection distinct.

• Three optical output connectors for independent light attachment
• Supports combined total load up to 180 watts at 12V
• Wiring and connectors sized to maintain reliable current delivery
• Switch controls all three outputs through one blue-illuminated rocker

What features make the switch and wiring durable for off-road use?

The switch is a 5-pin rocker with a laser-etched pattern that resists fading and a built-in blue indicator light for visibility. Paired with heavy-gauge stranded conductors and robust connectors, the harness is designed for repeat use in mobile and outdoor environments.

• 5-pin rocker rated for thousands of actuations (tested to 5,000 presses)
• Laser-etched surface resists wear and maintains legibility
• 16AWG stranded wiring for flexibility and vibration resistance
• Includes blade fuses and spade connectors for secure terminals

Will this work on my vehicle or boat?

The harness is intended for 12V systems found on cars, trucks, ATVs, UTVs, RVs, motorcycles, trailers and many watercraft. If your system is 24V, you will need to replace the 12V relay with a 24V relay to avoid damage and ensure correct operation.

• Designed for typical 12V battery vehicles and marine craft
• Not ready for 24V without swapping to a compatible 24V relay
• Includes basic installation instructions and mounting-friendly connectors
• Compact harness layout eases routing through engine bays and cabins

Who is this for: Installers, vehicle owners and DIY enthusiasts who want a simple, reliable way to add and control multiple auxiliary lights on a 12V platform. This kit suits people fitting light bars, pod lights, fog lights or off-road illumination who need a protected, single-switch solution with heavy-gauge wiring and durable switch hardware.