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Item #:
167623626
Painless Performance 30814 Quad Headlight Relay Conversion Harness (to H-4)
Item #:
167623626
SLE 5759
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Imported from USA store
QTY:
Order now and get it around Thursday, August 27
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What Stands Out
Simple Installation
The harness offers a straightforward plug-and-play setup, allowing users to swap headlights without extensive modifications, saving time and ensuring a hassle-free conversion.
Enhanced Brightness
Designed to support H-4 bulbs, this harness significantly improves headlight output, providing brighter illumination for safer night driving and better visibility in poor weather conditions.
Durability
Constructed with high-quality materials, this relay harness is built to withstand extreme conditions, ensuring a long-lasting, reliable performance that outperforms standard wiring kits.
Product Details
| Connector Type | H-4 |
| Current Rating | 40 Amps |
| Contact Current Rating | 40 Amps |
| Maximum Switching Current | 40 Amps |
| Part Interchange Info | 30814 |
| Brand Name | Painless |
| UPC | 749823308145 |
| Part Number | 30814 |
| Model | 30814 |
| Item Weight | 2.02 Pounds (920 grams) |
| Unit Count | 1.0 Count |
| Item Type Name | Quad Headlight Relay Conversion Harness (to H-4) |
| Manufacturer | Painless Performance Products, LLC |
| Included Components | Relays, bases, wiring, connectors, hardware, instructions |
| Global Trade Identification Number | 00749823308145 |
| Brand | Painless |
Who Should Buy?
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Car Enthusiasts
Ideal for car enthusiasts who want improved headlight performance and reliability in their custom vehicles.
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Restoration Projects
Perfect for classic car restoration projects, providing modern headlight solutions while maintaining original aesthetics.
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Easy Installation
Great for DIYers looking for a straightforward installation process to upgrade their vehicle’s lighting system.
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Budget Shoppers
Not suitable for those on a tight budget as quality components can come at a premium cost.
Product Description
Painless Performance 30814 Quad Headlight Relay Conversion Harness (to H-4)
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is the Painless Performance 30814 Quad Headlight Relay Conversion Harness?
Answer: The Painless Performance 30814 Quad Headlight Relay Conversion Harness is a specialized wiring harness designed to convert traditional headlights to H-4 style. It enhances headlight performance by utilizing relays, which allow for better voltage management directly to the headlight bulbs. This results in brighter lights and reduced flickering. Ideal for classic car restorations or upgrading older vehicle headlight systems, it ensures optimal illumination on the road. -
Question:
How does the quad headlight relay conversion harness improve headlight performance?
Answer: The harness improves headlight performance by bypassing the factory wiring, allowing for a direct power source to the H-4 bulbs through relays. This minimizes voltage drop and maximizes brightness. Additionally, it reduces heat generated in the factory wiring, preventing potential issues like melting wires or dimming lights. Users will notice significantly improved night visibility, making it essential for both safety and aesthetic upgrades. -
Question:
Is installation of the Painless Performance harness complicated?
Answer: Installation of the Painless Performance harness is straightforward, especially for those with basic wiring skills. The kit typically comes with all necessary connectors and clear instructions, making it accessible for DIY enthusiasts. However, if you're unfamiliar with automotive wiring, consulting a professional is advisable. Proper installation ensures that you fully benefit from the upgraded lighting and can enjoy enhanced safety while driving at night. -
Question:
Can the harness work with any vehicle type?
Answer: The harness is designed to be versatile, compatible with most vehicles that use dual headlight systems. It's particularly useful for classic cars and modified vehicles looking to upgrade to H-4 bulbs. However, it's essential to verify that your headlight assembly can accommodate the H-4 bulbs before installation. Considerations like space and electrical configuration are crucial to ensure proper fit and function. -
Question:
What types of bulbs are compatible with this harness?
Answer: The Painless Performance 30814 harness is specifically designed for use with H-4 headlight bulbs. This includes standard halogen bulbs as well as high-intensity discharge (HID) and LED variants that fit the H-4 specification. It's a great way to upgrade your lighting system, allowing you to choose the best bulb type for your driving needs and preferences. -
Question:
Will using this harness void my vehicle's warranty?
Answer: Typically, using aftermarket accessories like the Painless Performance harness may not void your vehicle's warranty, especially if installed correctly. However, it's advisable to check your warranty terms and conditions or consult with your dealer before making modifications. Modifications that do not affect OEM parts or safety equipment generally do not impact warranty claims. -
Question:
What are the benefits of converting to H-4 headlights?
Answer: Converting to H-4 headlights offers enhanced brightness, wider light coverage, and better visibility in low-light conditions. These bulbs often feature advanced filament designs that produce a more natural light and reduce glare for other drivers. Beyond safety, upgrading to H-4 lights can also modernize the front-end appearance of older vehicles, highlighting their uniqueness while providing a practical enhancement. -
Question:
Does the harness include everything needed for installation?
Answer: Yes, the Painless Performance harness usually includes all the necessary components for installation, such as the wiring harness, connectors, and detailed instructions. Some additional tools may be required, like wire strippers or crimpers, which you might need to have on hand. The complete package helps streamline the installation process, ensuring that users can upgrade their headlights with minimal hassle. -
Question:
How can I buy Painless Performance 30814 Quad Headlight Relay Conversion Harness to H-4 in Sierra Leone?
Answer: You can purchase the Painless Performance 30814 Quad Headlight Relay Conversion Harness to H-4 through Ubuy in Sierra Leone. Ubuy offers the product conveniently through their platform, ensuring that you can find the needed specifications easily and securely. -
Question:
Are there any precautions to take when installing the conversion harness?
Answer: When installing the conversion harness, it’s crucial to disconnect the battery to avoid electrical shorts. Ensure all connections are secure to prevent any flickering or failure of the headlights. Also, double-check that the wiring is routed away from any moving parts or hot surfaces. Following the installation instructions carefully will help enhance your vehicle’s lighting performance without any issues.
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Pros
- Easy installation
- Improves headlight brightness
- Durable materials
- Compatible with many vehicles
- Highly recommended by users
Cons
- Wiring instructions could be clearer.
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Chitra
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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23 July 2026 · via Trustpilot
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Important information
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SLE 5759
Order now and get it around Thursday, August 27
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.)
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Features & Benefits
- Upgrades 4-headlight systems to H-4 style halogen bulbs.
- Provides consistent battery voltage for improved visibility.
- Increases brightness by sourcing amperage directly from the battery.
- Kit includes essential components: relays, bases, connectors, and hardware.
- Ideal for relocating headlights to a remote position.
- Enhances overall safety and performance of vehicle lighting.
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