Will this work with nilight 18026c-a 37inch 780w triple row flood spot combo bar 78000lm driving waterproof led work light off-road t?

Are you sure the Watts you quoted is correct? 780w at 12V is 65Amps. I doubt this bar needs that. Its probably an equivalent to halogen light level. Check the actual current this draws. Then text me back. I see other users use a 30Amp fuse. So im pretty sure this kit will be fine

Why does my light bar sometimes stay on and not shut off?

You have it wired wrong, use ignition power, so when car/truck is off the light bar turns off 100% of the time.

The lights will not go out. Even disconnection swith will not turn lights off (have to pull fuse). T

I would check the connections on the relay itself if it’s wired backwards it can keep the power on all the time

Trying to understand the wires that go to the rocker switch, is black for ground ( - ), red for battery (+), and white?

Coming out of the relay are 3 sets of 2 lead wires, ..2 black (ground, attach these to the top left and right of the back side of the switch # 7,8), then 2 red, Positive,one will go to the single middle connector, #2. Now here’s your choice, if you want the face of the switch to light up even when the switch is “off”, hook up the other red lead to # 6 on the bottom right. If you don’t want the switch to always light up when “off”, then hook up the white 2 leads to #3 &6. Wrap electrical tape around the extra wire, either red or white, that’s not connected according to your choice. Hope this helps.

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Nilight - 10019W LED Light Bar Wiring Harness Kit 12AWG Heavy Duty 12V 5Pin Rocker Switch Laser On off Waterproof Switch Power Relay Blade Fuse-1 Lead,2 Years Warranty

Nilight - 10019W LED Light Bar Wiring Harness Kit 12AWG Heavy Duty 12V 5Pin Rocker Switch Laser On off Waterproof Switch Power Relay Blade Fuse-1 Lead,2 Years Warranty

Product ID: 62924688

Details

Brand
Nilight
Connector Type
Pin
Item Weight
1 Pounds
Item dimensions L x W x H
11 x 2 x 5
Material
Brass

💡5-pin LED rocker switch with soft illumination

🔌12AWG heavy-duty power cable

🛡️Built-in power relay & blade fuse for safety

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Description

⚡ Power up your ride with safety and style—never miss a switch in the dark!

ENHANCED SAFETY SHIELD - Power relay and blade fuse protect your system from overcurrent and short circuits.
GLOW IN THE DARK SWITCH - Dual premium LEDs illuminate the rocker switch for effortless control anytime.
PLUG PLAY CONVENIENCE - Complete kit with clear instructions for quick, hassle-free installation.
UNIVERSAL COMPATIBILITY - Seamlessly fits all 12V vehicles, boats & devices—no guesswork needed.
DURABILITY MEETS PERFORMANCE - Premium brass connectors with high-temp resistance ensure long-lasting reliability.

The Nilight 10019W Wiring Harness Kit features a heavy-duty 12AWG cable, a 5-pin LED rocker switch with built-in illumination, and integrated power relay plus blade fuse for superior electrical protection. Designed for universal 12V applications across vehicles and watercraft, it combines premium brass connectors with high-temperature resistance for durability. Backed by a 2-year warranty, this kit ensures safe, reliable, and easy installation for enhanced lighting control.

Specifications

ASIN	B074GYNJ85
Best Sellers Rank	#44,803 in Automotive ( See Top 100 in Automotive ) #107 in Automotive Replacement Electrical Wiring Harnesses
Brand	Nilight
Brand Name	Nilight
Cable Type	power cable
Connector Type	Pin
Customer Reviews	4.7 out of 5 stars 2,298 Reviews
EU Spare Part Availability Duration	2 Years
Global Trade Identification Number	00600537012806
Included Components	1PC Rocker Switch Wiring Harness Kit
Item Dimensions	11 x 2 x 5 inches
Item Type Name	Nilight - 10019W LED Light Bar Wiring Harness Kit 12AWG Heavy Duty 12V 5Pin Rocker Switch Laser On off Waterproof Switch Power Relay Blade Fuse-1 Lead
Item Weight	1 Pounds
Item dimensions L x W x H	11 x 2 x 5 inches
Manufacturer	Nilight
Material	Brass
Material Type	Brass
Model	10019W
Part Number	10019W
UPC	600537012806
Unit Count	1.0 Count
Warranty Description	2 Years

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$55.71

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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