Painless Performance 30815 Headlight Relay Conversion Harness for H-4 Halogen Bulbs
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Painless Performance 30815 Headlight Relay Conversion Harness for H-4 Halogen Bulbs
Painless Performance 30815 Headlight Relay Conversion Harness for H-4 Halogen Bulbs
Our headlight harness draws power directly from the battery, through a relay, to the headlights, providing full power to your H4 conversion headlights or halogen sealed beams.
Painless Performance 30815 Headlight Relay Conversion Harness for H-4 Halogen Bulbs
Artigo n.º: 142668073

Painless Performance 30815 Headlight Relay Conversion Harness for H-4 Halogen Bulbs

Artigo n.º: 142668073

€ 178

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from EUA

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EUA Importado da loja USA

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Apenas 1 item restante em estoque.
Encomende já e receba por volta de Quarta-feira, Julho 29
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Our headlight harness draws power directly from the battery, through a relay, to the headlights, providing full power to your H4 conversion headlights or halogen sealed beams.
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O que se Destaca

Instalação fácil
The Painless Performance Headlight Relay Conversion Harness is designed for simple plug-and-play installation, eliminating complex wiring tasks, allowing users to upgrade their headlights effortlessly.
Enhanced Lighting
Upgrades to H-4 halogen bulbs provide brighter and more efficient lighting, improving visibility on the road, which elevates safety and driving comfort during nighttime conditions.
Componentes duráveis
Constructed from high-quality materials, this harness ensures longevity and reliability, reducing the need for frequent replacements and enhancing the overall performance of your vehicle’s lighting system.

Detalhes do produto

Compre Painless Performance 30815 Headlight Relay Conversion Harness for H-4 Halogen online ao melhor preço na Ubuy Portugal. Obtenha ofertas, descontos e opção de entrega rápida.
  • Designed for H-4 halogens headlights to get maximum power from your headlights
  • Harness draws power directly from the battery, through a relay, to the headlights. . . providing full power to your H4 conversion headlights or halogen sealed beams
  • Can also be used to relocate headlights to a remote location
  • Kit includes: Two 40-amp weatherproof relays, two weatherproof relay bases with wiring harness, weatherproof 30-amp fuse (capable of handling up to 150 Watts), mating connectors to factory headlights and harness
  • Made in United States
Fonte de luzHalogen
Potência150 watts
Tipo de AjusteAjuste específico do veículo
Posição da peça automáticaFrente
Tipo de Ajuste AutomotivoAjuste específico do veículo
Nome da MarcaPainless
Componentes IncluídosH4 Headlight Relay Conversion Harness; For H-4 Halogen Bulbs;
Número de Peças7
Número da Peça do Fabricante30815
UPC749823308152
Nome do ConjuntoH4 Halogen Headlight Relay Conversion Kit (2 Relays, Harness, Fuse, Connectors)
FabricantePainless Performance Products, LLC
Número de Identificação do Comércio Global00749823308152
Número do Modelo30815
Informações sobre intercâmbio de peças30815
Contagem de Unidades1.0 Contagem
Nome do Tipo de ItemHeadlight Relay
Peso do Item1,9 libras (860 gramas)
MarcaPainless
Tipo de fonte de luzHalogen

What's in the box

H4 Headlight Relay Conversion Harness; For H-4 Halogen Bulbs;

Quem Deverá Comprar?

Suitable For
  • Classic Car Owners

    Ideal for owners of classic cars seeking improved headlight performance without damaging original wiring.

  • Night Drivers

    Perfect for those who drive frequently at night, offering enhanced illumination and visibility on dark roads.

  • entusiastas de DIY

    Suited for DIY car repair enthusiasts looking for an easy installation process to upgrade halogen headlights.

Not Suitable For
  • Modern Vehicles

    Not suitable for newer cars with existing high-performance lighting systems; may not offer significant benefits.

  • Compradores Conscientes do Orçamento

    Less ideal for users seeking low-cost solutions as this product may come with a premium price for performance.

  • Usuários Não Técnicos

    May not be appropriate for users lacking basic automotive repair skills, as installation requires some technical knowledge.

DESCRIÇÃO DO PRODUTO

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Perguntas e Respostas dos Clientes

  • pergunta: What is the Painless Performance 30815 Headlight Relay Conversion Harness?

    Resposta: The Painless Performance 30815 Headlight Relay Conversion Harness is a specialized wiring harness designed to facilitate the installation of H-4 halogen bulbs in various automotive applications. By connecting directly to your vehicle's existing electrical system, this harness improves the voltage supplied to the headlights, resulting in brighter and more efficient lighting. This unit is particularly beneficial when upgrading from old sealed beams to modern halogen bulbs, enhancing nighttime visibility and safety.
  • pergunta: How does the headlight relay system improve lighting performance?

    Resposta: The headlight relay system redirects the electrical current from the headlight switch to the headlights, thus reducing voltage drop caused by long wiring runs. This means that the headlights receive a higher voltage, which improves brightness and increases their effectiveness. Additionally, it minimizes load on the vehicle’s original wiring, leading to fewer electrical issues over time. This upgrade is perfect for vintage cars or vehicles with dim headlight problems.
  • pergunta: Is installation of the Painless Performance 30815 difficult?

    Resposta: Installation of the Painless Performance 30815 is straightforward for those with basic automotive wiring knowledge. The harness usually comes with clear instructions, and it typically requires just a few hand tools. It involves connecting the harness to the existing headlight wiring and securely mounting the relay, making it ideal for DIY enthusiasts who want to enhance their vehicle's lighting without professional help.
  • pergunta: What tools do I need to install the headlight relay harness?

    Resposta: To install the Painless Performance 30815 Headlight Relay Conversion Harness, you will need basic hand tools including a wire stripper, crimping tool, and possibly a screwdriver or socket set, depending on your vehicle. Having electrical tape can be helpful for securing connections, while zip ties are great for tidying up the wiring. This set of tools should be sufficient for successfully completing your lighting upgrade.
  • pergunta: What vehicles are compatible with the Painless Performance 30815 harness?

    Resposta: The Painless Performance 30815 harness is designed to be versatile and fits a wide range of vehicles that use H-4 halogen bulbs. This includes many classic cars, trucks, and even some modern vehicles. However, it is essential to check your vehicle's specific needs and compatibility details to ensure a proper fit, especially if it’s a unique model or year. This compatibility makes it an excellent choice for enthusiasts looking to modernize their vehicle’s lighting.
  • pergunta: Can I use LED bulbs with this harness?

    Resposta: While the Painless Performance 30815 harness is designed for H-4 halogen bulbs, you can use it with LED bulbs as long as they are compatible with the H-4 socket type. However, ensure that you use a suitable LED replacement that doesn’t exceed the electrical specifications of your vehicle to avoid any potential issues. This compatibility allows you to take advantage of improved efficiency and longevity offered by LED technology.
  • pergunta: What are the benefits of upgrading to H-4 halogen bulbs?

    Resposta: Upgrading to H-4 halogen bulbs provides several advantages over traditional sealed beam headlights. Halogen bulbs offer brighter illumination, better color temperature, and improved light range, enhancing visibility during nighttime driving. Additionally, they tend to have a longer service life compared to older bulb types. This upgrade can significantly enhance driving safety and contribute to a better overall driving experience.
  • pergunta: What safety considerations should I keep in mind with new headlight installations?

    Resposta: When installing new headlights, safety is paramount. Ensure that all connections are secure and insulated to prevent short circuits. Align your headlights properly to avoid blinding oncoming drivers, which can lead to dangerous situations. Regularly check the functionality of all lights after installation to ensure everything is working correctly. This proactive approach helps maintain safe driving conditions and compliance with road regulations.
  • pergunta: Where can I buy the Painless Performance 30815 Headlight Relay Conversion Harness in Portugal?

    Resposta: You can purchase the Painless Performance 30815 Headlight Relay Conversion Harness through Ubuy in Portugal. They offer a reliable online shopping platform with a range of automotive products, making it convenient to find and buy the harness you need. With Ubuy, you'll be able to explore a variety of options tailored to your specific automotive needs.
  • pergunta: Are there any aftermarket accessories I should consider with this harness?

    Resposta: When upgrading to the Painless Performance 30815 harness, consider pairing it with high-performance H-4 halogen bulbs and additional wiring upgrades for enhanced durability and performance. Additionally, using headlight covers can help protect your bulbs from damage. This combination can maximize the effectiveness of your new lighting system and ensure a long-lasting, efficient illumination setup for your vehicle.

Painless Wiring Harnesses Editorial Review

**** The Painless Performance 30815 Headlight Relay Conversion Harness for H-4 Halogen Bulbs has garnered a mixed reception from customers, largely centered around its quality and installation ease. Many enthusiasts appreciate the significant upgrade this harness provides for headlight performance, with most users noting that it boosts voltage, resulting in brighter lights and reduced amp load on the headlight switch. The inclusion of high-quality Hella relays and robust wiring contributes to a more reliable performance, alleviating concerns about potential electrical fires that cheaper options might overlook. Installation has generally been described as straightforward, making it an ideal solution for those looking to replace outdated wiring or improve their vehicle's lighting. However, some customers encountered issues with connector sizing, which necessitated additional cutting and splicing not anticipated in a premade harness, leading to dissatisfaction with the perceived value of the product. While the quality and performance are highlighted as key strengths, the price point has raised eyebrows, with some users questioning whether the benefits justify the cost compared to assembling a custom wiring harness. The Painless Performance harness is recognized for its superior materials and safety features, but potential buyers must weigh the convenience of a complete kit against the possibility of a more economical DIY approach. **

Avaliações e Classificações dos Clientes

4.6
42 classificações de clientes
  • 5 Estrela
    79%
  • 4 Estrela
    9%
  • 3 Estrela
    5%
  • 2 Estrela
    7%
  • 1 Estrela
    0%

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Prós

  • High-quality components and materials including Hella relays.
  • Improves voltage at headlights, resulting in brighter lighting.
  • Reduces amp load on the headlight switch, minimizing fire risks.
  • Simple installation process for many users.
  • Generous wire length allows for customization when needed.

Contras

  • Higher price compared to cheaper import alternatives.

Platform Trust & Buyer Confidence

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4.3/5 9,000 + reviews
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MT
Mohd
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“The product received very good packaging & safe…Thank You”

16 June 2026 · via Trustpilot
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Shawati
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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.”

15 June 2026 · via Trustpilot
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“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”

6/7/2026 · via Trustpilot
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Kwame
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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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  • Nem todos os produtos listados na Ubuy estão à venda, uma vez que a Ubuy é um motor de busca global. Os produtos estão sujeitos a leis de exportação/comércio.

€ 178

Encomende já e receba por volta de Quarta-feira, Julho 29

QTY:

Apenas 1 item restante em estoque.
Transação seguraTransação segura

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Os nossos principais Parceiros Logísticos
  • fedex
  • dhl
Entrega internacional mais rápida

Recursos e benefícios

  • Designed for H-4 halogens headlights to maximize power.
  • Direct battery connection ensures optimal headlight performance.
  • Includes two 40-amp weatherproof relays for durability.
  • Capable of supporting up to 150 Watts with a 30-amp fuse.
  • Ideal for relocating headlights to a remote location.
  • Compatible with factory headlights and harness for easy installation.

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