Nilight 10011W 16AWG Wiring Harness Kit with 5-Pin Rocker Switch, Relay & Blade Fuse (2 Leads) for 12V LED Light Bars

What it is and what it solves

Nilight’s 10011W wiring harness kit is built for adding a 12V LED light bar setup with a cleaner, safer on/off control path. Instead of “making it work” with random wiring, this kit focuses on a ready-to-install approach: you get a relay, an inline blade fuse, and a 5-pin rocker switch, all paired with wiring leads meant to connect your lights.

On paper, it’s meant for two-light-bar style installs using two leads, including configurations where each light output stays under 180 W (as stated for the output connector sets). If you’ve ever struggled to route power to a switch while protecting the circuit from overloads, this kit is the kind of practical add-on that makes the project feel more organized.

Key takeaways before you buy

Two leads are included, and the wiring is described as extendable up to 3.05 meters. That makes it easier to place the switch where you want it without immediately hitting the “short wire” problem.

You also get two output connector sets for controlling two LED lights with the kit. The relay and inline blade fuse are positioned as the protection layer—your first line of defense against overcurrent and short circuits—so you’re not relying purely on the switch or basic wiring alone.

There’s also a small usability detail: the switch is described as “glow/illuminated” (brighter in the dark) to help you find it at night. It’s not going to turn night driving into a showroom, but it can matter the moment you need to reach the controls fast.

What you’ll notice in day-to-day use

The most visible difference after installation is how the switch behaves and how predictable the power control feels. Using a relay typically means the switch is controlling a safer low-load signal path, while the relay handles the heavier power flow to the LEDs. Pair that with the included inline blade fuse, and you end up with a setup that’s easier to trust.

A realistic scenario: you’re on a truck, Jeep, ATV, UTV, or boat at dusk, you flip the rocker switch, and the LED light bar responds immediately. When you’re backing up or checking something off to the side, the illuminated switch helps you locate the control without fumbling.

Compatibility and limitations to keep in mind

This kit is described as suitable for “almost all” 12V vehicles, including Jeeps, ATV/UTV, cars, motorcycles, boats, yachts, and trailers. That’s broad, but it’s also one of those areas where you’ll want to double-check your exact electrical setup and where the switch will be mounted.

Also note the stated output limitation: the connector sets are intended for LED lights under 180 W (the information mentions “2 games of light output connectors for 2 luminaires of less than 180 W”). If your light bar(s) are outside that range, this may not be the right harness for your specific load.

Finally, instructions are included, but the language note says Spanish is not guaranteed. So if you rely on a specific language for wiring guidance, it’s worth keeping that in mind before you start.

Tech specs (only what’s provided)

• Name: Nilight 10011W 16AWG Wiring Harness Kit
• Type: 12V wiring harness kit for LED light bar use (2 leads)
• Wire gauge: 16AWG
• Leads/wiring length: extendable wiring up to 3.05 meters (as stated)
• Switch: 5-pin rocker switch (with described illumination)
• Protection: power relay + inline blade fuse (as described)
• Warranty: 2 years (as stated)

Where it shines, and where it may not

This is a solid pick if you want a straightforward, protected wiring path for a 12V LED light bar pair and you care about having the relay and blade fuse included rather than sourced separately.

It may not be the best match if your LED lights exceed the “less than 180 W” range mentioned for the kit’s output connectors, or if your project requires a different control style than a 5-pin rocker switch and relay-based setup.

In the box and what it means for your install

The kit contents are listed as: 1 wiring harness kit, 1 LED 5-pin rocker switch, and 1 instruction sheet. That’s helpful because you can plan your install around those components rather than wondering whether you’ll need extra switch hardware or protection parts.

That said, the description doesn’t mention things like mounting hardware beyond the switch itself. If your install plan depends on specific brackets or terminals, you may still need to confirm what you already have on hand.

Is it worth it?

Buy it if you’re installing a 12V LED light bar setup with two leads and want a harness kit that includes a relay, inline blade fuse protection, and a 5-pin rocker switch—especially if you don’t want to guess your way through basic power distribution.

Skip it if your lights don’t fit the stated under-180W guidance for the output connector sets, or if you need guaranteed instructions in a specific language. Also, if your setup is very custom and doesn’t line up with a relay + fuse + rocker switch approach, you might find a different wiring solution more flexible.

Worth considering if you’re building a practical off-road or marine auxiliary lighting setup and you want the controls to feel straightforward, with a switch you can find easily at night.

Quick FAQ

Will this work on a 12V system only?

The description states it’s suitable for 12V vehicle batteries, and lists multiple 12V use cases (jeeps, ATVs/UTVs, boats, trailers, and more).

Does the kit include the switch and protection parts?

Yes. The package is described as including a 5-pin rocker switch plus a power relay and an inline blade fuse (the protection is also described as part of the kit’s protection approach).

How long are the wires?

The wiring is described as extendable up to 3.05 meters, so it’s intended to give you some routing flexibility.

Are the instructions in English or Spanish?

Instructions are included, but the note says Spanish language is not guaranteed. The entry does not confirm English explicitly beyond that.