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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⚡ Power up your ride with confidence and style!

BUILT IN SAFETY FIRST - Power relay and blade fuse guard against overcurrent and short circuits for worry-free use.
GLOW IN THE DARK SWITCH - Dual premium LEDs softly illuminate the rocker switch, making nighttime control effortless.
COMPLETE PLUG PLAY KIT - Includes wiring harness, 5-pin LED rocker switch, and clear instructions for quick installation.
UNIVERSAL 12 V COMPATIBILITY - Seamlessly powers all your vehicles and watercraft with a reliable 12V DC source.
DURABILITY MEETS PERFORMANCE - High-temp resistant, flexible 12AWG wiring ensures long-lasting, flawless electrical flow.

The Nilight 10019W LED Light Bar Wiring Harness Kit offers a universal 12V heavy-duty solution with waterproof rocker switch, built-in safety relay and blade fuse, and premium 12AWG wiring for superior conductivity and durability. Designed for vehicles and watercraft, it ensures easy installation and reliable performance backed by a 2-year warranty.

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Manufacturer	Nilight
Brand	Nilight
Model	10019W
Product Dimensions	27.94 x 5.08 x 12.7 cm; 453.59 g
Item model number	10019W
Exterior	Painted
Manufacturer Part Number	10019W
Position	Front
Bulb Type	LED
Special Features	Waterproof
Voltage	12 Volts
Item Weight	454 g

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

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