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Heavy-Duty 40A 12V Wiring Harness Kit, Includes On/Off Switch, Relay & Fuse for LED Light Bars & Fog Lights

Heavy-Duty 40A 12V Wiring Harness Kit, Includes On/Off Switch, Relay & Fuse for LED Light Bars & Fog Lights

Regular price $149.94
Regular price Sale price $149.94
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Returns

We accept returns within 30 days of delivery. Items must be unworn, unwashed, and returned with original tags attached.

Care Instructions

To preserve the beauty of your dress, we recommend gentle hand washing or dry cleaning. Do not bleach. Hang or lay flat to dry. Steam or iron on low heat if needed.

Shipping

Orders are processed within 1–3 business days.

  • Standard Shipping: 5–9 business days — $3.95
  • Express Shipping: 4–7 business days — $9.95

Delivery times are estimates and may vary depending on your location. Tracking information will be provided once your order has been shipped.

This 2X wiring harness kit provides everything you need for a safe and efficient LED fog light bar or off-road lighting setup. Built for durability, this 40A 12V system includes a high-quality on/off relay, fuse protection, and a convenient switch power control—ensuring optimal performance and longevity for your lights.

Key Features:

  • Heavy-Duty 40A 12V Wiring – Handles high-power LED light bars and fog lights without overheating.
  •  Easy On/Off Control – Includes a rocker switch for quick power management.
  • Built-in Fuse Protection – Prevents electrical shorts and damage to your lighting system.
  • Universal Compatibility – Works with most LED light bars, fog lights, and off-road lighting setups.
  • Plug-and-Play Installation – Simple setup with clear instructions—no professional help needed!

Ideal For:

  • Off-road LED light bars and fog lights

  • Jeep, truck, ATV, and UTV lighting upgrades

  • DIY lighting projects requiring a 40A 12V relay system


Why Choose This Wiring Harness Kit?

Unlike flimsy wiring setups, this kit ensures stable power delivery with a 40A relay, reducing voltage drop and extending the life of your lights. The fuse adds an extra layer of safety, while the on/off switch provides instant control.

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Heavy-Duty 40A 12V Wiring Harness Kit,...
Regular price $149.94
Regular price Sale price $149.94
Selected Variant Image
Heavy-Duty 40A 12V Wiring Harness Kit, Includes On/Off...
Regular price $149.94
Regular price Sale price $149.94

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  • E
    Emily R.
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    Verified Buyer
    Perfect for a summer wedding
    I wore this to my cousin's wedding and felt amazing all day. The fit was exactly as expected, and I received so many compliments. I ordered my usual size S.
  • O
    Olivia H.
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    Verified Buyer
    Beautiful dress
    Really happy with this purchase. I only wish I had steamed it before trying it on because it arrived with a few wrinkles from shipping.
  • S
    Sarah T.
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    Verified Buyer
    So flattering
    I have a hard time finding dresses that fit my waist properly, but this one was perfect. Very comfortable to wear for several hours.
  • C
    Chloe W.
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    Verified Buyer
    Worth every dollar
    The quality surprised me. The material has a nice weight and doesn't feel see-through at all. I'll definitely order another style.
  • A
    Amanda K.
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    Verified Buyer
    Engagement photo approved
    Bought this for our engagement photos and couldn't be happier. It looked beautiful in natural light and fit perfectly.
  • N
    Nicole B.
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    Verified Buyer
    Runs slightly roomy
    I was between sizes and ordered the larger one. It still looked great, but I probably could have gone with my usual size.
  • H
    Hannah C.
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    Verified Buyer
    Comfortable all evening
    Wore this to a formal dinner and didn't have to adjust it once. It stayed comfortable from start to finish.
  • M
    Megan L.
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    Verified Buyer
    Love the quality
    Beautiful stitching and a really elegant design. It feels much more expensive than it actually is.
  • R
    Rachel S.
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    Verified Buyer
    True to size
    I followed the size chart and ordered a Medium. It fit exactly the way I wanted.
  • A
    Ashley D.
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    Verified Buyer
    Received so many compliments
    Everyone kept asking where I bought this dress. It's simple, elegant, and easy to accessorize.
  • L
    Lauren P.
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    Verified Buyer
    Vacation favorite
    Packed this for my trip to Italy and wore it twice. It's lightweight, comfortable, and photographs beautifully.
  • B
    Brittany G.
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    Verified Buyer
    Lovely dress
    The zipper was a little stiff the first time, but after wearing it once everything worked perfectly. Overall, I'm very happy.
  • K
    Kayla N.
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    Verified Buyer
    Helpful customer service
    I wasn't sure which size to buy, so I contacted support first. They recommended a Small, and it fit perfectly.