Nilight 16AWG Wiring Harness Kit for LED Light Bars – 3-Lead Blue Rocker Switch, Relay & Inline Fuse, 12V Multi-Light Control

This Nilight 16AWG wiring harness kit gives you a ready-to-install, three-light 12V control system with a blue 5‑pin rocker switch, inline fuse, and relay for safe power distribution.

Built for off-road rigs, trucks, ATVs, RVs and marine accessories, this harness consolidates power and control for up to three separate lighting loads. The assembly uses 16AWG stranded cable rated for a combined load up to 180 watts, includes a relay and inline blade fuse for circuit protection, and ships with connectors and an instruction sheet so you can fit LED light bars, pods or fog lamps quickly.

How does this harness simplify installing multiple lights?

The three-output design routes power from a single fused source to three devices while keeping control consolidated at one switch. Each output uses secure optical connectors so you avoid splicing into factory wiring, and the relay reduces current run through the dashboard switch for safer operation.

• Three distinct outputs for independent or grouped lights
• Pre-crimped connectors and spade terminals for fast hookup
• Relay handles high draw, protecting the switch wiring
• Inline blade fuse guards against overload and short circuits

What safety and durability features are included?

This kit focuses on reliable long-term performance: 16AWG stranded conductors resist vibration and heat, and the harness comes with a heavy-duty relay plus blade fuse for first-line protection. The supplied rocker switch is laser-etched and rated for repeated use to keep markings visible over time.

• 16AWG stranded wire resists fatigue from movement and flexing
• Power relay prevents excessive current through the switch
• Inline blade fuse gives accessible overcurrent protection
• Switch is tested for thousands of actuations and retains markings

Which vehicles and lights are compatible with this kit?

Designed for 12V systems, the harness works with most battery-operated vehicles and equipment—cars, trucks, ATVs, UTVs, RVs, boats and trailers—powering LED light bars, pods, fog lights and similar accessories. For 24V systems, swap the relay for a matching 24V relay to maintain proper operation.

• Compatible with most 12V battery vehicles and marine applications
• Supports LED light bars, pods, fog lights, and off-road lamps
• Simple relay upgrade needed for 24V systems (relay not included)
• Includes fuses and connectors to suit common lighting installations

What comes in the box and what tools do I need?

The package includes the complete wiring harness, a blue 5‑pin LED rocker switch, blade fuses, spade connectors and a basic instruction sheet to guide the install. Typical installations require hand tools such as crimpers, screwdrivers and basic wiring tools; wire routing and mounting hardware depend on your vehicle and lights.

• Complete Nilight wiring harness with three outputs and relay
• Blue 5‑pin rocker switch with illuminated indicator
• Blade fuses, spade connectors and instruction sheet included
• Installation needs basic hand tools and mounting hardware (not included)

Who is this for: This Nilight 16AWG 3-lead harness is aimed at DIYers, mechanics and off-road enthusiasts who want a tidy, protected way to power and switch up to three 12V lighting devices. Choose this kit if you need a plug-and-play wiring solution with built-in relay and fuse protection for trucks, ATVs, UTVs, RVs, boats or custom vehicle projects.