Best Car Lighting Relays of 2025

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Car lighting relays are essential components that help to control the flow of electricity to a vehicle's lighting system. These relays act as switches that turn the lights on and off, allowing drivers to adjust the brightness of their headlights, taillights, and other lighting fixtures. Car lighting relays are typically made from high-quality materials that are designed to withstand the rigors of daily use, and they come in a variety of sizes and styles to fit different makes and models of vehicles. Whether you're looking to upgrade your car's lighting system or simply need to replace a faulty relay, there are plenty of options available to suit your needs.
At a Glance: Our Top Picks
Top 10 Car Lighting Relays
Fog Light Connector Kit Sawyer Auto Tahoe
The Fog Light Connector Kit Sawyer is designed to fit your 2007-2015 Chevrolet Tahoe perfectly. Using the fitment search tool ensures that this part suits your vehicle, providing peace of mind. It meets OE standards, meaning it’s manufactured with modern tooling for quality and reliability. This kit is an upgrade from the original materials, enhancing your vehicle's performance. Plus, it installs directly and seamlessly, just like the factory unit, making the replacement process easy and straightforward.
Peterson Mfg M165A Led Marker/Clearance, Pc, Round, 2
Upgrade your vehicle with the Peterson LED Marker Light. This American-made light features 5 diodes, making it bright and efficient. The multivolt option ensures compatibility with various systems. Its PC rating guarantees durability. When mounted at a 45° angle, it serves as both a clearance and side marker light, saving you space and providing dual functionality.
Neerttily Right Fog Light for Camry
The Neerttily Fog Light is designed specifically for the right passenger side of Toyota Camry models from 2007 to 2009. Before making your purchase, it's essential to verify compatibility with your vehicle using Amazon's Fitment Filter. This fog light comes in a primed finish, allowing you to paint it to match your car's exterior perfectly. Sold individually, it ensures you get just what you need for your lighting needs. With the part numbers 13463685 and 5212706040, you can easily identify this product when searching for replacements.
AUTOPARTS FACTORY Fog Light Trim
The AUTOPARTS FACTORY Fog Light is designed specifically for the front right side of your vehicle, ensuring a perfect fit. Before purchasing, you can easily confirm compatibility with your car using the Amazon Fitment Filter. This fog light trim is sold individually, allowing you to replace only the necessary parts without buying in bulk. It comes primed, which means you can paint it to match your vehicle's color, enhancing its appearance and functionality. With these features, you can improve visibility during foggy conditions and elevate your car's overall look.
VIRAZE Fog Light Trim Left
The VIRAZE Fog Light Trim is designed to enhance your vehicle's lighting system. Before making a purchase, it’s essential to verify its compatibility with your car using Amazon's Fitment Filter. This fog light trim is specifically for the front left side, ensuring a precise fit. It comes with a paint-to-match finish, allowing for a seamless integration with your vehicle’s color. Additionally, the product is delivered locally, so you can expect to receive it promptly. If you have any questions, a professional after-sales support team is available to assist you, providing peace of mind.
MRRWIBH Fog Light Trim Set
The MRRWIBH Trim Set includes (2) Fog Light Trims designed for the front left or right location of your vehicle. Before purchasing, ensure compatibility by checking the Amazon Fitment Filter and Description. The Textured Black color adds a sleek look to your car. The set is easy to install and enhances visibility during foggy conditions, improving your safety on the road.
OYYMTE Fog Light Bezel Set
The OYYMTE Fog Light Bezel offers a perfect fit for your vehicle, but it’s important to check the Amazon Fitment Filter before purchasing. With a professional-grade auto parts team available around the clock, you can get answers to any questions you might have, ensuring a smooth buying experience. Additionally, the local delivery option means you receive your package promptly, minimizing wait times. This product is designed for both the left and right front positions, and it arrives in a ready-to-paint black finish, allowing you to customize it to match your vehicle's style.
Neerttily Left Fog Light for Lexus ES
The Neerttily Fog Light is specifically designed for the left side of Lexus ES300h and ES350 models from 2013 to 2015. Before making your purchase, it's essential to check the fitment to ensure compatibility with your vehicle. This fog light comes in a stylish chrome and silver finish, enhancing your car's appearance while providing improved visibility during foggy conditions. Sold individually, it allows you to replace only the necessary part without the need for a complete set, offering both convenience and cost-effectiveness. The part numbers, 12499924 and LX1038104, help you easily identify the right replacement for your needs.
OYYMTE Fog Connector 200 53822SS
The OYYMTE Fog Connector is designed specifically for your vehicle, so it’s essential to check the Amazon Fitment Filter to ensure compatibility before making a purchase. This product comes with a 12-month warranty, giving you peace of mind with your investment. Each connector is brand new and packaged directly from the factory, ensuring it meets strict quality control standards. Plus, with local delivery, you can receive your package promptly. Should you have any questions, the professional after-sales team is available 24/7 to assist you, making your experience as smooth as possible.
Neerttily Fog Light Trims for BMW X5
The Neerttily BMW X5 Fog Trims are designed to enhance your vehicle's lighting system. Before purchasing, it's essential to check the fitment to ensure compatibility with your BMW X5 model. These trims come in a primed finish, ready for painting to match your car's color. They are sold as a set of two, providing a complete solution for both the driver and passenger sides. With these fog light trims, you can improve your car's visibility in poor weather conditions, making your driving experience safer and more enjoyable.
Frequently Asked Questions (FAQs)
1. Why is relay used in car lights?
Relays are used in car lights to prevent the switch from handling high currents required for the headlamps. By using a relay, the switch can control the relay coil, which then controls the high current required for the lights.
2. What happens when a relay goes bad?
When a relay goes bad, it can result in a loss of power to the fuel pump and ignition system. This can lead to a no power condition and prevent the car from starting.
3. What is the most common problem found with a relay failure?
The most common failure mechanisms of relays are contamination and mechanical wear of the internal switching elements. While solid-state relays are generally more reliable for long-life applications, contamination and mechanical wear can still lead to failures.
4. What happens when a relay goes out?
If a relay goes out while the engine is operating, it can cut off power to the fuel pump and ignition system. This will cause the vehicle to stall immediately due to the lack of fuel and spark.
5. Do I need a relay for 12V lights?
The need for a relay for 12V lights depends on the amp draw of the light. If you are using a light pod with a low amp draw, a relay switch may not be necessary. However, for larger LED light bars with a higher amp draw, using a relay is recommended.
6. Does each headlight have its own relay?
In most cases, each headlight (low and high beams) has its own relay. These relays act as electrical switches for the headlights. However, the relay for the low beams is more likely to go bad since they are used more frequently.
7. Can a car run without relays?
A car may not run without relays, especially if the relay controls the starter motor or the ignition system. The starter motor requires considerable current, and without a relay, the ignition switch may burn out. If the starting relay fails, the vehicle may not start.
During our car lighting relay research, we found 24 car lighting relay products and shortlisted 10 quality products. We collected and analyzed 5,954 customer reviews through our big data system to write the car lighting relays list. We found that most customers choose car lighting relays with an average price of $20.85.
The car lighting relays are available for purchase. We have researched hundreds of brands and picked the top brands of car lighting relays, including Sawyer Auto, Peterson Manufacturing, Neerttily, AUTOPARTS FACTORY, VIRAZE. The seller of top 1 product has received honest feedback from 824 consumers with an average rating of 4.5.

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.