---
product_id: 112958146
title: "High-end Wiring Harness Kit, LED Light Bar Wiring Harness Kit for Off Road Lights LED Light Bar with 12V 40A Relay On Off Switch(2 Lead)"
brand: "wowled"
price: "€ 51.08"
currency: EUR
in_stock: true
reviews_count: 8
category: "Wowled"
url: https://www.desertcart.it/products/112958146-high-end-wiring-harness-kit-led-light-bar-wiring-harness
store_origin: IT
region: Italy
---

# 240W max LED power Waterproof rocker switch 40A heavy-duty relay High-end Wiring Harness Kit, LED Light Bar Wiring Harness Kit for Off Road Lights LED Light Bar with 12V 40A Relay On Off Switch(2 Lead)

**Brand:** wowled
**Price:** € 51.08
**Availability:** ✅ In Stock

## Summary

> 💡 Power your off-road adventures with precision and style!

## Quick Answers

- **What is this?** High-end Wiring Harness Kit, LED Light Bar Wiring Harness Kit for Off Road Lights LED Light Bar with 12V 40A Relay On Off Switch(2 Lead) by wowled
- **How much does it cost?** € 51.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/112958146-high-end-wiring-harness-kit-led-light-bar-wiring-harness)

## Best For

- wowled enthusiasts

## Why This Product

- Trusted wowled brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual-Lead Control:** Simultaneously power two LED light bars with ease, perfect for multi-light setups.
- • **Ultra-Durable Build:** Crafted from eco-friendly, anti-retardant PVC for long-lasting, rugged off-road use.
- • **Universal Compatibility:** Fits all 12V/24V vehicles, boats, and devices—your all-in-one lighting harness solution.
- • **Comprehensive Protection:** 40A relay with inline fuse guards against overload, short circuits, and reverse polarity.
- • **Waterproof Illuminated Switch:** Backlit rocker switch ensures visibility and control even in the harshest conditions.

## Overview

The WOWLED High-end Wiring Harness Kit is a premium, waterproof wiring solution designed for LED light bars up to 240W. Featuring a 40A relay, illuminated rocker switch, and dual leads for controlling two lights simultaneously, it offers robust protection against electrical faults. Made from durable, eco-friendly PVC, this universal kit fits most 12V/24V vehicles and marine applications, ensuring reliable, professional-grade performance for off-road and work lighting setups.

## Description

WOWLED High-end Wiring Harness Kit, LED Light Bar Wiring Harness Kit for Off Road Lights LED Light Bar with 12V 40A Relay On Off Switch(2 Lead) : desertcart.co.uk: Electronics & Photo

Review: Good harness but some cables are to short - It’s a good harness, BUT the power cables and ground cables definitely could be longer, or at least longer cable to cut to desired length then crimp on the connections, It’s good for what your pay for though, Install will vary on what your doing, again cable lengths to be longer would be a big help
Review: Goof quality - I did end up cutting a fair bit out of this. I fitted an isolaton switch so their setup didn't fit mine, exactly. Also every vehicle is different in size and battery pacement. I could have made up my own harness, BUT, it's a very good quality bit of kit that has been in place for over a year with no issues.

## Features

- WOWLED Wiring Harness Kit: WOWLED Universal fit heavy duty Wiring Harness Kit for LED work Light bar max 240W. Waterproof Illuminated Backlit LED ON/OFF Ultra-high-end luxury rocker switch. Please note that Package May Vary
- 2 Leads Available: Professionally assembled wiring loom kit suitable for LED driving lights. Come with 2 Leads could control 2 LED lights simultaneously. High quality, made of environmentally friendly anti-retardant materials. Unique PVC construction. Easy to install and DIY
- Rocker Switch with Bonus Fuse and Connectors: Waterproof 5pin rocker switch, relays and fuse included the wiring with 3 extra free fuse and 4pcs light output connectors for more stable connection. High quality LED light bar switch with blue back lit led logo
- Efficient protection: 40A power relay and inline blade fuse to better defense against over current and short circuit. Heavy-duty Cable Wiring Harness Loom great for usage. Output circuit protection, overload protection, reverse polarity protection, multiple protection, safety to use. The switching relay is rated to 40A, routine use recommend 20A will have a longer lifespan
- Widely Application: Compatible with all automobiles, boats and devices equipped with a 12V/24V power source. Suitable for 12V light bars, spot lights, fog lights, driving lights and work lights, etc. Complete wiring kit for most 12V applications such as HID halogen and LED light bars

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07P6PJY1X |
| Best Sellers Rank | 16,460 in Automotive ( See Top 100 in Automotive ) 9 in Car Light Bars |
| Brand | WOWLED |
| Cable Type | Flat Ribbon |
| Connector Type | 5-pin, 4-pin |
| Country Of Origin | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (370) |
| Manufacturer | Wow Factor |
| Manufacturer Part Number | KF-1903220K |
| Material | Polyvinyl Chloride (PVC) |
| Model Number | KF-1903220K |
| Unit Count | 2.0 Count |

## Product Details

- **Brand:** WOWLED
- **Connector type:** 5-pin, 4-pin
- **Manufacturer:** Wow Factor
- **Material:** Polyvinyl Chloride (PVC)

## Images

![High-end Wiring Harness Kit, LED Light Bar Wiring Harness Kit for Off Road Lights LED Light Bar with 12V 40A Relay On Off Switch(2 Lead) - Image 1](https://m.media-amazon.com/images/I/61IfMa-DlVL.jpg)
![High-end Wiring Harness Kit, LED Light Bar Wiring Harness Kit for Off Road Lights LED Light Bar with 12V 40A Relay On Off Switch(2 Lead) - Image 2](https://m.media-amazon.com/images/I/71V7svCYToL.jpg)
![High-end Wiring Harness Kit, LED Light Bar Wiring Harness Kit for Off Road Lights LED Light Bar with 12V 40A Relay On Off Switch(2 Lead) - Image 3](https://m.media-amazon.com/images/I/71z1AwljGHL.jpg)
![High-end Wiring Harness Kit, LED Light Bar Wiring Harness Kit for Off Road Lights LED Light Bar with 12V 40A Relay On Off Switch(2 Lead) - Image 4](https://m.media-amazon.com/images/I/71lEWmHqueL.jpg)
![High-end Wiring Harness Kit, LED Light Bar Wiring Harness Kit for Off Road Lights LED Light Bar with 12V 40A Relay On Off Switch(2 Lead) - Image 5](https://m.media-amazon.com/images/I/71pSUyoRF6L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Are they road legal?**
A: Mine are set-up as Reversing Lights and in that case the Answer is Yes. but no idea if you wanted to use them facing forwards as Running Lights.

**Q: Lights won’t stay on. What’s wrong? I’ve wired up as per instructions but the rocker switch on turns on when held down.**
A: It sounds like a faulty switch if it only works if you have to keep it pushed on OR your switch is not seated properly in your allocated slot

**Q: 240w requires 20amp cable? The cable deliver is 16awg rated at 10. Is the 240w harness suitable for 20amp?**
A: Yes

**Q: Is the switch a permanent live as when my key is out of the ignition the lights still work?**
A: I don't know the answer, but suggest that there must be some current getting past/through the switch, it takes very little to power LED lights. I had an 240V AC 100 W LED floodlight which flickered on every 15 seconds and the current was going through the neon in the switch and charging up the LED's to cause the problem.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good harness but some cables are to short
*by S***N on 11 July 2025*

It’s a good harness, BUT the power cables and ground cables definitely could be longer, or at least longer cable to cut to desired length then crimp on the connections, It’s good for what your pay for though, Install will vary on what your doing, again cable lengths to be longer would be a big help

### ⭐⭐⭐⭐⭐ Goof quality
*by M***N on 21 September 2025*

I did end up cutting a fair bit out of this. I fitted an isolaton switch so their setup didn't fit mine, exactly. Also every vehicle is different in size and battery pacement. I could have made up my own harness, BUT, it's a very good quality bit of kit that has been in place for over a year with no issues.

### ⭐⭐⭐⭐⭐ Great product, supplied relay doesnt work :(
*by M***L on 20 July 2025*

Great quality, easy to install!

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-21*