Nilight LED Light Bar Wiring Harness Kit 12V with 5‑Pin Illuminated Rocker Switch — Dual Output, 180W Protected

Nilight's 12V Off-Road LED Light Bar Wiring Harness Kit is a ready-to-install electrical kit that powers up to two LED light bars (combined under 180W) using a 5-pin illuminated rocker switch and heavy-duty relay protection.

This harness kit streamlines wiring for aftermarket LED light bars and auxiliary lighting on cars, trucks, ATVs, UTVs, RVs, boats, and trailers. Built with 16 AWG stranded conductors inside a heat-resistant nylon jacket, the assembly includes a relay and inline blade fuse for overcurrent protection, plus two output leads for dual fixtures. The illuminated 5-pin SPST rocker switch offers easy on/off control and visibility in low-light conditions.

How does this harness keep my lights protected from electrical faults?

The harness routes power through a dedicated relay and an inline blade fuse to intercept surges and short circuits before they reach your light bars. That layered protection reduces the likelihood of damage to wiring, switches, and lighting fixtures while simplifying troubleshooting.

• 16 AWG stranded wire supports up to 180W total load.
• Automotive-grade relay handles switching current away from the dash.
• Inline blade fuse provides immediate overcurrent cutoff.
• Nylon jacket offers high-temperature and abrasion resistance.

What does the 5-pin rocker switch do and why is it useful?

The included Nilight 5-pin rocker switch is SPST (single pole, single throw) and switches power to the relay, letting you control lighting without routing heavy current through the switch itself. Two built-in LEDs illuminate the rocker so you can locate the control in the dark and confirm when your lights are active.

• SPST design: simple on/off operation with reliable contact.
• Illuminated rocker: visible status and easy locate in low light.
• Pre-wired connectors: quick dash or panel installation.
• Durable switch housing for long-term use.

Can I run two LED light bars from this kit and how do I install them?

Yes — the harness includes two output leads so you can power dual light fixtures as long as their combined draw stays below 180W. Installation is straightforward: connect the harness to the battery, mount the inline fuse close to the positive terminal, attach the relay and switch, and plug the fixture connectors into the output leads.

• Two output leads for separate or parallel fixtures.
• Battery positive lead requires inline blade fuse placement.
• Relay-driven switching reduces heat at the dash switch.
• Pre-crimped connectors speed up hook-up to lights.

What materials and features make this harness durable for off-road use?

The harness is jacketed in high-quality nylon for abrasion resistance and improved heat tolerance compared with basic PVC sleeving. Stranded 16 AWG conductors resist vibration fatigue, and weather-resistant connectors help maintain reliable contacts in dusty, wet, or bumpy conditions.

• Nylon outer jacket resists chemicals, heat, and abrasion.
• 16 AWG stranded wire for flexibility and vibration resilience.
• Sealed connectors minimize corrosion risk.
• Relay and fuse placement reduces exposed wiring segments.

Who is this for? This Nilight wiring harness kit is designed for vehicle owners and installers who want a reliable, factory-style electrical solution for aftermarket LED light bars. It's a practical pick for DIY mechanics, off-road enthusiasts, fleet maintenance crews, RV and marine owners, and anyone needing a durable, easy-to-install harness to add auxiliary lighting while keeping wiring safe and simple.