---
product_id: 733073504
title: "O-NEX HID Relay Harness H4 (9003 HB2) 12V 35W/55W Bi-Xenon Hi/Lo H/L Wiring Controller"
brand: "o-nex"
price: "862 kr"
currency: ISK
in_stock: false
url: https://www.desertcart.is/products/733073504-o-nex-hid-relay-harness-h4-9003-hb2-12v-35w
store_origin: IS
region: Iceland
---

# 12V heavy-duty power 35W/55W dual wattage support Hi/Lo bi-xenon beam control O-NEX HID Relay Harness H4 (9003 HB2) 12V 35W/55W Bi-Xenon Hi/Lo H/L Wiring Controller

**Brand:** o-nex
**Price:** 862 kr
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Illuminate your drive with power and precision — never settle for dim.

## Quick Answers

- **What is this?** O-NEX HID Relay Harness H4 (9003 HB2) 12V 35W/55W Bi-Xenon Hi/Lo H/L Wiring Controller by o-nex
- **How much does it cost?** 862 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/733073504-o-nex-hid-relay-harness-h4-9003-hb2-12v-35w)

## Best For

- o-nex enthusiasts

## Why This Product

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

## Key Features

- • **Hi/Lo Beam Mastery:** Effortlessly switch between high and low beams with integrated bi-xenon relay control for superior visibility.
- • **Plug & Play Power Boost:** Seamlessly powers your HID setup with robust 12V relay harness for consistent performance.
- • **Sleek Concealment Ready:** Designed for aftermarket HID setups with a low-profile, heavy-duty build that stays discreet yet durable.
- • **Dual Wattage Compatibility:** Supports both 35W and 55W HID kits, giving you flexible upgrade options without hassle.
- • **Universal Left-Right Connection:** One harness powers both sides, simplifying installation and reducing clutter under the hood.

## Overview

The O-NEX HID Relay Harness H4 (9003 HB2) is a 12V, heavy-duty wiring controller designed for 35W and 55W bi-xenon HID kits. Featuring dual beam Hi/Lo functionality, it supports seamless left and right side connections, ensuring reliable, high-performance lighting with a sleek, concealed design perfect for aftermarket upgrades.

## Description

HID Bi-Xenon Relay Harness This item is for one set of HID Bi-Xenon Relay Harness. Bixenon relay is designed for use with bixenon (dual beam) HID bulbs only. This relay harness has two connectors that connect to both sides of the headlight. Controls switching between high and low beam functions The harness connects to one side of the vehicle's factory OEM socket, without cutting or splicing With the OEM connection, you can not only turn the headlight on and off, but also use the factory light switch to turn on the high/low switch. Features and Specifications: - Heavy duty relay harness - Low & High Beam Function - 100% waterproof and weather resistant. - Easy installation, plug and play - Advanced Relay Control Box - High quality - Input Voltage: DC 12V - 35W/55W Hi/Lo Bi-Xenon type HID installation only Installation Instruction 1. Connect the red wire directly to the battery positive pole. 2.Plug the long short male connector into the left and right side ballasts. 3.Connect the small rectangular wire to the HID bulb. 4.Connect the last single female connector to the car or truck stock headlight connector. ** Please note that the red wire is connected to the battery positive pole, and the two black wires are connected to the negative and ground Warranty 1 year limited warranty from the date of purchase. Warranty is not subject to water damage, fire, natural, misuse, modification, improper installation or modification of the product.

## Features

- H4 9003 HB2 Bi-Xenon (Hi/Lo) Battery Wiring Harness
- Bi-Xenon HID Relay Harness, Works with 35W and 55W HID Kits, Heavy Duty Design
- Dual Beam High & Low (Hi/Low H/L) function is for most aftermarket concealment
- 1 Harness connects to left and right sides
- For use with 35W/55W Hi Lo bixenon type HID installation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color Temperature | 6000 Kelvin |
| Light Color | red |
| Auto Part Position | Front |
| Number of Pieces | 1 |
| Brightness | 1000 lm |
| UPC | 732341334307 |
| Manufacturer | O-NEX |
| OEM Part Number | H4 |
| Global Trade Identification Number | 00732341334307 |
| Product Dimensions | 17.78 x 5.08 x 5.08 cm; 159 g |
| Item model number | H4 |
| Is Discontinued By Manufacturer | No |
| ABPA Partslink Number | UN2568108 |
| Item Dimensions  L x W x H | 17.8 x 5.1 x 5.1 cm |
| Voltage | 12 Volts |
| Item Weight | 159 g |

## Product Details

- **Brand:** O-NEX
- **Light Source Type:** Xenon
- **Included Components:** Relay Harness
- **Wattage:** 35 W
- **Fit Type:** Vehicle Specific Fit

## Images

![O-NEX HID Relay Harness H4 (9003 HB2) 12V 35W/55W Bi-Xenon Hi/Lo H/L Wiring Controller - Image 1](https://m.media-amazon.com/images/I/711Wd4q4CjL.jpg)
![O-NEX HID Relay Harness H4 (9003 HB2) 12V 35W/55W Bi-Xenon Hi/Lo H/L Wiring Controller - Image 2](https://m.media-amazon.com/images/I/61PL0IA9eBL.jpg)
![O-NEX HID Relay Harness H4 (9003 HB2) 12V 35W/55W Bi-Xenon Hi/Lo H/L Wiring Controller - Image 3](https://m.media-amazon.com/images/I/51-F2FngkmL.jpg)
![O-NEX HID Relay Harness H4 (9003 HB2) 12V 35W/55W Bi-Xenon Hi/Lo H/L Wiring Controller - Image 4](https://m.media-amazon.com/images/I/51XsUbGR+zL.jpg)
![O-NEX HID Relay Harness H4 (9003 HB2) 12V 35W/55W Bi-Xenon Hi/Lo H/L Wiring Controller - Image 5](https://m.media-amazon.com/images/I/714buQucS5L.jpg)

## Questions & Answers

**Q: I need a harrness to hook up to H11**
A: H11 will work this harness but for 80's model 3 prong light switch systems

**Q: Does this keep the low beam on when high beams are turned off? My 99 4runner automatically turns off low beam when high beam is switched**
A: no, it is only for bi-xenon hid kit relay replacement.

**Q: Will these work on led bulbs as well? having drl issues**
A: no, it does not fix drl issue. not for LED Bulbs.

**Q: I have fahren 9005/hb3 led headlight bulbs, 60w  will these work with this kit (96 ciivcex 2dr)?**
A: NO.

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**Shop now:** [https://www.desertcart.is/products/733073504-o-nex-hid-relay-harness-h4-9003-hb2-12v-35w](https://www.desertcart.is/products/733073504-o-nex-hid-relay-harness-h4-9003-hb2-12v-35w)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-05*