Nilight 14 AWG Nylon LED Light Bar Wiring Harness Kit — 2-Lead, Relay & 5-Pin Illuminated Switch

Nilight's 14 AWG Nylon LED Light Bar Wiring Harness Kit is a heavy-duty, two-lead wiring solution with a 5-pin illuminated rocker switch, relay protection, and inline fuse designed for 12V vehicle lighting setups.

This wiring harness bundle is built to supply stable power to one or two LED light bars and similar 12V lighting fixtures while minimizing wiring complexity. It pairs a durable nylon-jacketed 14 AWG cable with a power relay, inline blade fuse, and a Nilight 5-pin SPST rocker switch that includes two small LEDs for nighttime visibility. The kit is intended for a wide range of automotive and recreational vehicles and prioritizes safer connections and easier installation compared with makeshift wiring.

How does this harness protect my lights and vehicle wiring?

The kit uses a relay and an inline blade fuse so the control switch only triggers the relay, keeping high current away from the cabin wiring and protecting the circuit from overloads. The 14 AWG stranded wire is sized to handle the kit’s rated load, reducing voltage drop and heat build-up under normal operation. These design elements combine to lower the chance of shorts or premature connector failure.

• Integrated power relay routes high current outside the switch circuit.
• Inline blade fuse provides primary overcurrent protection.
• 14 AWG stranded conductors reduce voltage drop for up to 300 W load.

What are the switch and control features?

The included Nilight 5-pin rocker switch is an SPST design that simply turns connected lights on or off. It has two small built-in LEDs that softly illuminate the switch face so you can locate it in low light without glare. The switch wiring is straightforward and made to work with the kit’s relay and dual output leads.

• 5-pin SPST rocker switch for simple on/off control.
• Two soft indicator LEDs for night visibility of the switch.
• Plug-and-play connectors intended for quick installation with the harness.

How will the harness fit my vehicle and lighting setup?

This harness is designed for 12V battery systems and supports up to two lighting fixtures using the two output leads, provided the total load stays within the harness capacity. The nylon jacketed cable improves durability and heat resistance, making it suitable for engine bays and exposed mounting locations. Connectors and lead lengths are arranged to accommodate common mounting positions on cars, trucks, ATVs, UTVs, boats, and trailers.

• Two output leads allow powering dual light fixtures under the 300 W combined limit.
• Nylon jacket offers flexibility and resistance to abrasion and heat.
• Compatible with most 12V systems: cars, RVs, ATVs, motorcycles, boats, trailers.

What should I expect during installation?

Installation typically involves routing the harness to the battery, mounting the relay and fuse near the power source, running the output leads to the lights, and mounting the switch in a convenient dash location. Basic hand tools and a multimeter are sufficient for most installs, and the kit’s connectors reduce the need for soldering. Proper fuse placement close to the battery is recommended for best protection.

• Mount relay and inline fuse close to the battery for effective protection.
• Run ground and positive leads securely; fasten connectors to prevent vibration issues.
• Use basic tools and a multimeter to verify voltage and polarity before finalizing connections.

Who is this for: The Nilight 14 AWG Nylon LED Light Bar Wiring Harness Kit suits DIY installers, mechanics, and off-road enthusiasts who want a cleaner, safer wiring solution for one or two LED light bars on 12V vehicles. It’s particularly appropriate for users who prefer a ready-made harness with relay protection, an illuminated rocker switch, and a durable nylon jacket instead of fabricating their own wiring assembly.