Nilight 16AWG 2-Lead Light Bar Wiring Harness — 5-Pin Switch 12V, 180W Protection & Dual Outputs

Nilight's 16AWG 2-lead wiring harness with a 5-pin illuminated rocker switch is a ready-to-install 12V kit designed to power and protect LED light bars up to 180W.

This compact harness bundles power, protection and user-friendly switching into a single assembly for automotive and marine LED lighting. It includes a pre-wired relay, blade fuse, two output leads for dual fixtures, and a 5-pin rocker switch with built-in LEDs so you can find the control in low light. With 12 feet of wire and plug-type outputs, the kit simplifies routing, reduces on-vehicle wiring time and helps keep installations neat.

Will this harness run my LED light bar and two accessories?

Yes—if the combined draw of your light bar(s) does not exceed the harness's 180W capacity at 12V. The dual output leads allow two fixtures to be powered from the same relay and fuse, while the included blade fuse and relay protect the circuit from overloads.

• Supports up to 180W total load at 12 volts.
• Two output connectors for powering dual light fixtures.
• Power relay isolates switch from high current draw.
• Includes two spare fuses for quick replacement.

How does the switch and relay improve safety and convenience?

The 5-pin rocker switch controls the relay rather than the full lamp current, reducing heat and wear on the switch contacts. The switch has two small LEDs so you can locate it in darkness, and the relay plus blade fuse deliver protection against short circuits and overcurrent situations.

• SPST-style 5-pin rocker switch operates the relay, not the load.
• Built-in LEDs illuminate the switch for visibility at night.
• Blade fuse interrupts power during overloads or shorts.
• Relay provides durable high-current switching and isolation.

What vehicles and installations are compatible with this harness?

The wiring kit is designed for nearly any 12V platform: off-road vehicles, trucks, motorcycles, boats and trailers. For 24V systems, you can use this physical harness but must replace the relay with a 24V-rated relay to match the higher bus voltage.

• Works with 12V jeeps, ATVs, UTVs, cars, trucks, trailers and marine craft.
• 12-foot wiring length helps reach front- or rear-mounted lights.
• Two outputs support dual light bars or auxiliary lamps.
• For 24V systems, swap to a compatible 24V relay before use.

What comes in the box and how easy is it to install?

The kit ships as a plug-and-play assembly with the switch, wiring harness, relay, and at least one blade fuse installed plus extras. Mounting the switch into a dashboard panel hole and connecting battery, ground and lamp leads follows standard wiring steps, making it a straightforward upgrade for DIYers and installers.

• Package includes the wiring harness, a 5-pin LED rocker switch and instructions.
• Pre-terminated connectors speed up hook-up and reduce crimping needs.
• 12 feet of wire allow flexible routing across the vehicle firewall and chassis.
• Two spare fuses included for convenience after installation.

Who is this for? This Nilight harness is aimed at DIY mechanics, off-road enthusiasts, commercial vehicle fitters and boat owners who want a compact, protective wiring solution for up to 180W of LED lighting on 12V systems. If you need dual outputs, visible switching in the dark, and a fused, relay-controlled circuit for safer operation, this kit provides a quick, tidy way to wire your lights. For 24V installations, plan to source a matching 24V relay before connecting.