---
product_id: 33529505
title: "iJDMTOY High/Low Relay Wire Harness Compatible with Original H4 Dual-Beam to Separated 9005/9006 Hi/Lo Beams"
brand: "ijdmtoy"
price: "6042 som"
currency: KGS
in_stock: true
reviews_count: 10
category: "I Jdmtoy"
url: https://www.desertcart.kg/products/33529505-ijdmtoy-high-low-relay-wire-harness-compatible-with-original-h4
store_origin: KG
region: Kyrgyzstan
---

# 40A max current rating Direct battery power input Dual 4-pin SPST relay modules iJDMTOY High/Low Relay Wire Harness Compatible with Original H4 Dual-Beam to Separated 9005/9006 Hi/Lo Beams

**Brand:** ijdmtoy
**Price:** 6042 som
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your ride with precision and confidence!

## Quick Answers

- **What is this?** iJDMTOY High/Low Relay Wire Harness Compatible with Original H4 Dual-Beam to Separated 9005/9006 Hi/Lo Beams by ijdmtoy
- **How much does it cost?** 6042 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/33529505-ijdmtoy-high-low-relay-wire-harness-compatible-with-original-h4)

## Best For

- ijdmtoy enthusiasts

## Why This Product

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

## Key Features

- • **Dual Relay Modules:** Two pre-wired 4-pin SPST relays ensure seamless high/low beam switching.
- • **Heavy-Duty 40A Capacity:** Handles up to 40 amps for robust power delivery without compromise.
- • **Universal Compatibility:** Fits H4, 9005, 9006, HB3, HB4 connectors for versatile vehicle integration.
- • **Plug-and-Play Installation:** Simplified wiring harness with inline fuse for safe, hassle-free setup.
- • **Battery-Powered Reliability:** Draws power directly from the battery to protect your vehicle’s wiring system.

## Overview

The iJDMTOY High/Low Relay Wire Harness is a professional-grade automotive wiring solution designed to convert original H4 dual-beam headlights into separated 9005/9006 high/low beams. Featuring dual 4-pin SPST relays rated for 40 amps and a 320W max load, it ensures reliable, direct battery power delivery while protecting your vehicle’s wiring. Compatible with multiple connector types, this harness offers easy installation with built-in safety fusing, making it ideal for upgrading fog lights, off-road light bars, and other heavy-duty lighting applications.

## Description

Buy iJDMTOY High/Low Relay Wire Harness Compatible with Original H4 Dual-Beam to Separated 9005/9006 Hi/Lo Beams: Wiring Harnesses - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Miata NB1 to NB2 Headlight Conversion - I did a headlight conversion from a Mazda Miata NB1 to NB2 and used this wiring harness. The NB1 Miata has a ground switching circuit, so the diode in the harness needs to be removed. Once that's done, the low beams stay on when I turn on the high beams. The indicator on the dash also works. I wouldn't say this is super amazing quality, but it gets the job done and has been working so far, so I recommend the product!
Review: Great product - Awesome to yes if you know what you're doing

## Features

- One relay wiring harness set includes two 4-pin SPST relay module boxes, in-line safety fuse box, input +/- terminals, and H4/HB2/9003 input trigger and four 9006/HB4/9005/HB3 outputs for reliable and efficient electrical connections
- The pre-wired dual SPST 4-pin electrical relay unit, complete with socket and rated at 12V DC with a maximum of 30-40AMP, is ideal for most heavy duty electronic devices, light applications between 9-16V DC, with a wattage not exceeding 320W
- H4/9003/HB2 inptut trigger, with four sets of HB4/HB3 outputs, good for light applications with socket sizes of 9006/9012/HB4, 9005/HB3 H10 9145 9140 9055, etc
- Perfect for power management, this relay harness is ideal for applications like front fog/driving lights and off-road lightbars, pod lamps drawing power directly from the battery to prevent excessive load on the vehicle's existing wiring system and ensuring safe, easy on/off operation
- Installation tips: connect output contacts to up to 4 light applications/devices, attach red/black O-ring/C-ring to battery +/- or ACC/accessory 12V+/ground, connect the signal triggering wires to existing/factory adapter to trigger the on/off operation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01M15V3HK |
| Best Sellers Rank | #240,510 in Automotive ( See Top 100 in Automotive ) #1,132 in Automotive Replacement Electrical Wiring Harnesses |
| Brand | iJDMTOY |
| Brand Name | iJDMTOY |
| Coil Voltage | 12 volts_of_direct_current |
| Connector Type | H4, 9006, Hb3 |
| Contact Current Rating | 40 A |
| Contact Material | Silver |
| Contact Type | Normally Open |
| Current Rating | 40 A |
| Customer Reviews | 4.2 out of 5 stars 142 Reviews |
| Item Weight | 8 ounces |
| Manufacturer | iJDMTOY Auto Accessories |
| Minimum Switching Voltage | 12 volts_of_direct_current |
| Model | For Repair, Conversion, Custom Retrofit |
| Mounting Type | DIN Rail Mount |
| Number of Items | 1 |
| Number of Packs | 1 |
| Operation Mode | Manual |
| Part Number | AA1089a |
| Wattage | 320 watts |

## Product Details

- **Brand:** iJDMTOY
- **Connector Type:** H4, 9006, Hb3
- **Item Weight:** 8 ounces
- **Material:** Ceramic and Copper Wires
- **Number of Items:** 1

## Images

![iJDMTOY High/Low Relay Wire Harness Compatible with Original H4 Dual-Beam to Separated 9005/9006 Hi/Lo Beams - Image 1](https://m.media-amazon.com/images/I/71jHAPJlqYL.jpg)
![iJDMTOY High/Low Relay Wire Harness Compatible with Original H4 Dual-Beam to Separated 9005/9006 Hi/Lo Beams - Image 2](https://m.media-amazon.com/images/I/61ckZ+FZ5DL.jpg)
![iJDMTOY High/Low Relay Wire Harness Compatible with Original H4 Dual-Beam to Separated 9005/9006 Hi/Lo Beams - Image 3](https://m.media-amazon.com/images/I/314matnZ4zL.jpg)
![iJDMTOY High/Low Relay Wire Harness Compatible with Original H4 Dual-Beam to Separated 9005/9006 Hi/Lo Beams - Image 4](https://m.media-amazon.com/images/I/61xDcyCh9EL.jpg)
![iJDMTOY High/Low Relay Wire Harness Compatible with Original H4 Dual-Beam to Separated 9005/9006 Hi/Lo Beams - Image 5](https://m.media-amazon.com/images/I/71k-P1fFFVL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Miata NB1 to NB2 Headlight Conversion
*by P***Z on April 17, 2025*

I did a headlight conversion from a Mazda Miata NB1 to NB2 and used this wiring harness. The NB1 Miata has a ground switching circuit, so the diode in the harness needs to be removed. Once that's done, the low beams stay on when I turn on the high beams. The indicator on the dash also works. I wouldn't say this is super amazing quality, but it gets the job done and has been working so far, so I recommend the product!

### ⭐⭐⭐⭐⭐ Great product
*by R***S on August 27, 2025*

Awesome to yes if you know what you're doing

### ⭐⭐⭐⭐ Works great with scion Xa projectors retro fit
*by J***N on July 17, 2023*

These are so close to plug and play just needed to switch two wire around on the main h4 plug harness for it to work! besides that now everything works now and I'm happy with the results!

## Frequently Bought Together

- iJDMTOY High/Low Relay Wire Harness Compatible with Original H4 Dual-Beam to Separated 9005/9006 Hi/Lo Beams
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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-09-08*