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Item #:
79570354
1Set H4 Relay Harness, H4 Headlight Relay Harness H4 Wiring Harness Headlight Relay Kit, DC 12V 80A PE Waterproof Cord Kit Headlamp Brightener, High
Item #:
79570354
USD 31
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from UK
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In stock
Imported from UK store
QTY:
Order now and get it around Sunday, July 19
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💡【SAFE AND RELIABLE】The wiring harness is made of PE pipe, endowing it with high heat resistance without hardening. The product is waterproof, which can ensure stable work and high performance, so you can use it with confidence.
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Note: Step Up Voltage Transformer required for using electronics products of UK store (230 V). Recommended power converters Buy Now.
What Stands Out
High Heat Resistance
Constructed with materials designed to withstand high temperatures, ensuring durability and longevity in extreme automotive conditions without hardening over time.
PE Waterproof Cord
The harness features a PE waterproof cord, providing reliable protection against moisture, enhancing performance, and reducing the risk of electrical faults in wet conditions.
80A Power Handling
Capable of supporting up to 80A, this relay harness ensures optimal power delivery for headlight brightness, addressing common issues with dim lights while enhancing visibility and safety on the road.
Product Details
| Item Weight | 1 lbs (450 grams) |
Who Should Buy?
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Car Enthusiasts
Ideal for car enthusiasts looking to improve headlight performance and luminosity with a reliable relay harness.
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DIY Installers
Perfect for DIYers who want to install or upgrade their vehicle’s lighting system without complex wiring.
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Off-Road Drivers
Useful for off-road drivers needing robust, waterproof lighting solutions that can withstand harsh environments.
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Casual Users
Not suitable for casual users who require simple plug-and-play solutions without extensive installation efforts.
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Non-Vehicle Applications
Not recommended for applications outside vehicles, as it’s specifically designed for automotive headlight systems.
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Budget Shoppers
May not be ideal for budget shoppers looking for more affordable or basic lighting upgrades.
Product Description
1Set H4 Relay Harness, H4 Headlight Relay Harness H4 Wiring Harness Headlight Relay Kit, DC 12V 80A PE Waterproof Cord Kit Headlamp Brightener, High Heat Resistance Without Hardening
About This Item
Enhance the performance and brightness of your vehicle's headlights with the 1Set H4 Relay Harness. This high-quality wiring harness is designed to improve your headlight output and provide a reliable connection for your H4 headlights. The H4 Relay Harness features a DC 12V 80A PE waterproof cord, ensuring durability and resistance to harsh weather conditions. With its high heat resistance, this harness will not harden or deteriorate over time, guaranteeing long-lasting performance. Installing the H4 Relay Harness is a breeze.
Simply connect it to your existing headlight wiring and plug in the relay socket. The included fuse adds an extra layer of protection, safeguarding your headlights and electrical system. Upgrade your headlights with this universal relay kit, compatible with a wide range of vehicles. Whether you have halogen, LED, or HID headlights, this harness will enhance their performance and provide a stable power supply. Say goodbye to dim headlights and unreliable connections.
With the H4 Relay Harness, you'll experience improved visibility and a brighter beam pattern, ensuring a safer and more enjoyable driving experience. Invest in the H4 Relay Harness and enjoy the benefits of enhanced headlight performance. Upgrade your headlights today and experience the difference this innovative product can make.
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Customer Questions & Answers
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Question:
What is the material of the wiring harness?
Answer: The wiring harness is made of PE pipe. -
Question:
Is the product waterproof?
Answer: Yes, the product is waterproof. -
Question:
Is modification of spare wires required?
Answer: No, there is no need to modify spare wires.
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“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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“Accurate delivery timing given”
16 June 2026 · via Trustpilot
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“Not madly expensive like I thought, and much quicker than promised.”
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6/7/2026 · via Trustpilot
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“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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USD 31
Order now and get it around Sunday, July 19
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Safe and reliable wiring harness
- Made of high heat resistant PE pipe
- Waterproof for stable work and high performance
- No need to modify spare wires
- Easy to replace and install
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