Nilight 16AWG LED Light Bar Wiring Harness Kit — 6-Lead with 3-Gang Illuminated Switch, 540W Relay-Protected

Nilight's 16AWG 6-lead wiring harness kit provides a ready-to-install, heavy-duty solution to power up to six 12V LED light circuits with a 3-gang rocker switch panel.

This complete wiring kit is built to simplify mounting multiple LED light bars or auxiliary lights on vehicles, boats, and recreational equipment. It combines a robust 16AWG stranded main harness, a power relay, inline blade fuse protection, and a 3-gang switch panel with illuminated rockers. The harness separates each circuit so you can control several light banks independently while keeping wiring tidy and protected.

How much load can this harness safely handle?

The kit uses 16AWG stranded wiring and is rated for up to 540W total, with 180W available per circuit. Overcurrent protection is provided by an inline blade fuse at the main feed and the harness is switched via a relay to reduce voltage drop and heat in the switch.

• 16AWG stranded wire for durability and flexibility
• 180W per circuit, 540W combined maximum
• Inline blade fuse and power relay for circuit protection

Can I run six lights independently and how do the switches work?

Yes — the harness offers six leads paired into three separate switch circuits. Each rocker switch controls its own relay-fed circuit and lights up with a blue indicator when active. The switches accept DIY labels so you can mark functions for quick identification.

• 3-gang switch panel with illuminated rockers
• Each switch controls two leads (two lights per circuit)
• Switches rated for at least 5,000 presses for long life

Which vehicles and systems is this harness compatible with?

The harness is designed for 12V electrical systems and fits a wide range of platforms including cars, trucks, ATVs, UTVs, RVs, motorcycles, trailers, and boats. For 24V systems you must swap the included 12V relay for a matched 24V relay to avoid malfunction.

• Designed for standard 12V battery systems
• Compatible with automotive, marine, and powersports applications
• Relay change required for 24V installations

What’s included and what additional parts might I need?

The package ships with the 3-gang wiring harness, blade fuses, and spade connectors so you can start wiring quickly. Depending on your installation you may need mounting hardware, heat shrink, ring terminals, or an appropriately sized relay for non-12V systems.

• Included: 3-gang harness, blade fuses, spade connectors
• Optional: mounting screws, ring terminals, heat shrink tubing
• Replace relay if using 24V systems

Who is this for: This Nilight harness suits DIY installers, mechanics, and vehicle owners who want to add multiple auxiliary lights while keeping wiring organized and protected. It’s ideal for off-roaders, boat owners, campers, and anyone fitting light bars who needs separate control over several light banks without complex custom wiring.