Cab lights, also known as clearance lights or marker lights, are a type of auxiliary lighting system that are commonly installed on the roof of trucks, SUVs, and other larger vehicles. These lights are typically used to increase visibility and improve safety, especially when driving at night or in inclement weather. In addition to their functional benefits, cab lights can also add a stylish and distinctive look to a vehicle, making them a popular accessory among truck and SUV enthusiasts. In this blog post, we will explore the world of cab lights, including their history, types, installation process, and more, to help you determine if cab lights are the right choice for your vehicle.

Table of Contents
What are cab lights?
Cab lights, also known as clearance lights or marker lights, are additional lights mounted on the roof of trucks, SUVs, and other large vehicles. They are typically placed at the front and rear of the cab and sometimes on the sides, and they come in different shapes, sizes, and colors. The most common cab lights are rectangular or round and come in amber, red, or clear colors.
Cab lights are designed to serve as a visual aid to other drivers, especially during low light or nighttime conditions. They help to make the vehicle more visible on the road, increasing safety and reducing the risk of accidents. Cab lights are often seen on commercial vehicles such as semi-trucks and trailers, but they can also be installed on personal trucks and SUVs for both practical and aesthetic purposes.
From a personal perspective, I find cab lights to be a great addition to any truck or SUV. They not only serve a functional purpose but also enhance the appearance of the vehicle, giving it a rugged and distinctive look. Installing cab lights can also be a fun DIY project for truck enthusiasts who enjoy customizing their vehicles.
Overall, cab lights are a simple yet effective way to increase safety and visibility on the road while adding a touch of personality to your truck or SUV.
What is the purpose of cab lights?
The purpose of cab lights is to increase the visibility of large vehicles on the road, especially during low light or nighttime conditions. By providing additional lighting at the top of the cab, cab lights make the vehicle more visible to other drivers, reducing the risk of accidents and increasing overall safety.
In addition to their functional purpose, cab lights also serve an aesthetic purpose. They give the vehicle a distinctive and rugged appearance that can make it stand out on the road. For truck enthusiasts, installing cab lights can be a fun way to personalize and customize their vehicles.
Cab lights are commonly seen on commercial vehicles such as semi-trucks and trailers, but they can also be installed on personal trucks and SUVs. Some people choose to install cab lights for practical reasons, such as when driving in rural or remote areas with little to no street lighting. Others install them purely for the aesthetic appeal they provide.
Overall, cab lights are a useful and stylish addition to any truck or SUV. They help increase safety on the road by making the vehicle more visible to other drivers and can also add a touch of personality to your vehicle.
How do you install cab lights?
Installing cab lights can be a relatively simple DIY project, but it does require some basic tools and knowledge of electrical wiring. Here are the general steps for installing cab lights:
- Choose the right type of cab lights for your vehicle: There are many different types of cab lights available, so it’s important to choose the ones that are compatible with your vehicle and meet your preferences in terms of size, shape, and color.
- Determine the placement of the cab lights: Decide where you want to mount the cab lights on your vehicle. The most common locations are at the front and rear of the cab, and sometimes on the sides. Make sure the chosen location is flat and clean to ensure a secure fit.
- Prepare the mounting surface: Clean the mounting surface thoroughly with a non-abrasive cleaner and allow it to dry completely.
- Wire the cab lights: Route the wiring through the mounting location and connect it to the vehicle’s electrical system. This step may require splicing wires or using a wiring harness adapter, depending on the type of cab lights you choose.
- Mount the cab lights: Secure the cab lights to the mounting surface using screws, bolts, or adhesive tape, depending on the type of lights and the mounting location.
- Test the cab lights: Test the cab lights to ensure they are working properly and that they are aimed in the desired direction.
Keep in mind that these steps are general guidelines and may vary depending on the specific type of cab lights you choose and the make and model of your vehicle. It’s always a good idea to consult the manufacturer’s installation instructions or seek professional installation if you’re not confident in your abilities.
in this video you will see how to install a cab light
What are the different types of cab lights?
There are several different types of cab lights available on the market, each with its own unique features and benefits. Here are some of the most common types:
- Rectangular cab lights: These are the most common type of cab lights and come in a rectangular shape. They are available in different colors such as amber, red, and clear, and are often used on semi-trucks and trailers.
- Round cab lights: These cab lights have a circular shape and are also available in different colors. They are commonly used on pickup trucks and SUVs.
- Teardrop cab lights: These cab lights have a unique teardrop shape and are commonly used on classic trucks and hot rods.
- LED cab lights: LED cab lights are becoming increasingly popular due to their long lifespan and energy efficiency. They are available in various shapes and sizes and can produce bright and vibrant colors.
- Roof marker lights: Roof marker lights are larger and more visible than traditional cab lights and are typically used on larger vehicles such as semi-trucks and buses.
- Smoked cab lights: Smoked cab lights have a darker tint than traditional cab lights and can add a sleek and stylish look to a truck or SUV.
Overall, the type of cab lights you choose will depend on your personal preferences and the make and model of your vehicle. It’s important to choose cab lights that are compatible with your vehicle and meet your local regulations and laws.
Are cab lights legal?
The legality of cab lights varies by state and country, so it’s important to check your local laws and regulations before installing them on your vehicle. In the United States, the Department of Transportation (DOT) has regulations regarding the placement and color of lighting on vehicles. The DOT requires that any lighting on the top of a vehicle, including cab lights, be amber in color and not exceed a certain height.
In addition to federal regulations, many states have their own laws regarding the use of cab lights. For example, some states may require that cab lights be turned off while driving on public roads, while others may prohibit certain colors or types of cab lights altogether.
It’s important to do your research and ensure that the cab lights you choose are legal in your area before installing them on your vehicle. Failure to comply with local regulations could result in fines or even impoundment of your vehicle.
If you’re unsure about the legality of cab lights in your area or how to install them properly, it’s best to consult with a professional installer or check with your local DMV or transportation department for guidance.
How do you remove cab lights?
If you want to remove cab lights from your vehicle, the process will depend on the type of lights and how they were installed. Here are some general steps that can be followed to remove cab lights:
- Disconnect the wiring: Before removing the lights themselves, disconnect the wiring that connects them to your vehicle’s electrical system. This is usually done by unplugging the wiring harness or by disconnecting the wires at the source.
- Remove the mounting hardware: Depending on how the lights were installed, they may be held in place with screws, bolts, or adhesive tape. Use the appropriate tools to remove the hardware and gently pry the lights off the mounting surface.
- Clean the mounting surface: Once the lights have been removed, clean the mounting surface thoroughly with a non-abrasive cleaner and allow it to dry completely.
- Patch any holes: If your cab lights were mounted with screws or bolts, you may need to patch any holes that were left behind. This can be done with a patch kit or by using a sealant that is compatible with your vehicle’s exterior.
Keep in mind that these steps are general guidelines and may vary depending on the specific type of cab lights you are removing and the make and model of your vehicle. It’s always a good idea to consult the manufacturer’s instructions or seek professional help if you’re not confident in your abilities.
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How do you install cab lights?
The installation process for cab lights will depend on the type of lights you are installing and the make and model of your vehicle. Here are some general steps that can be followed to install cab lights:
- Choose a location: Decide where you want to mount your cab lights. This will depend on the type of lights and the size and shape of your vehicle. Cab lights are typically mounted on the roof of a vehicle, but can also be mounted on other areas such as the hood or fenders.
- Prepare the mounting surface: Clean the mounting surface thoroughly with a non-abrasive cleaner and allow it to dry completely. If necessary, mark the location where you will be mounting the lights.
- Install the mounting hardware: Depending on the type of lights you are installing, you may need to install mounting hardware such as screws, bolts, or adhesive tape. Follow the manufacturer’s instructions for installing the hardware, making sure it is securely fastened to the vehicle.
- Connect the wiring: Connect the wiring for the cab lights to your vehicle’s electrical system. This is usually done by plugging in a wiring harness or by connecting the wires directly to a power source.
- Test the lights: Once the wiring is connected, turn on the lights to make sure they are working properly.
Keep in mind that these steps are general guidelines and may vary depending on the specific type of cab lights you are installing and the make and model of your vehicle. Always refer to the manufacturer’s instructions for specific installation requirements and seek professional help if you’re not confident in your abilities. Additionally, it’s important to ensure that your cab lights meet local regulations and laws regarding their use and installation.
Can cab lights be installed on any vehicle?
Cab lights can technically be installed on any vehicle, but it’s important to consider a few factors before doing so. First and foremost, you’ll want to ensure that the cab lights you choose are compatible with the make and model of your vehicle. Some cab lights are designed to fit specific vehicles or may require modifications to fit properly.
In addition to compatibility, it’s important to consider the size and shape of your vehicle when choosing cab lights. Cab lights that are too large or too small for your vehicle may look out of place or not function as intended. It’s also important to consider the placement of the lights and how they will impact the overall appearance of your vehicle.
Finally, it’s important to consider the local laws and regulations regarding the use of cab lights. As mentioned earlier, the placement and color of cab lights are regulated by the Department of Transportation in the United States, and many states have their own laws regarding their use. Make sure to do your research and ensure that the cab lights you choose are legal in your area before installing them on your vehicle.
Overall, while cab lights can be installed on any vehicle, it’s important to carefully consider compatibility, size and shape, and local regulations before doing so.
What are the different types of cab lights?
There are several different types of cab lights available on the market, each with its own unique features and benefits. Here are some of the most common types of cab lights:
- LED cab lights: LED cab lights are one of the most popular types of cab lights due to their energy efficiency, durability, and bright illumination. They are available in a range of colors and styles and are often easy to install.
- Halogen cab lights: Halogen cab lights are another popular option. They are typically less expensive than LED lights and offer a warm, yellowish light. However, they are not as energy efficient and tend to have a shorter lifespan.
- Strobe cab lights: Strobe cab lights are typically used by emergency vehicles and are designed to flash rapidly to increase visibility. They are available in a range of colors and can be used in combination with other types of cab lights.
- HID cab lights: HID (High-Intensity Discharge) cab lights are similar to halogen lights but offer a brighter, more intense light. They are more expensive than halogen lights but are known for their durability and long lifespan.
- Custom cab lights: Custom cab lights are available for those who want a unique look for their vehicle. These lights can be customized with different colors, shapes, and designs to create a personalized look.
Ultimately, the type of cab lights you choose will depend on your personal preferences, the intended use of the lights, and your budget.
Can cab lights be used for any purpose other than aesthetics?
While cab lights are primarily used for aesthetic purposes, they can also serve practical purposes in certain situations. For example, cab lights can be used by emergency vehicles such as police cars, fire trucks, and ambulances to increase visibility and signal to other drivers that they are responding to an emergency.
Additionally, cab lights can be used on work trucks and heavy machinery to increase visibility and safety on job sites. This can be particularly useful in low light or hazardous conditions.
Overall, while cab lights are primarily used for aesthetic purposes, they can also serve practical purposes in certain situations where visibility and safety are important.
Can cab lights affect the performance of a vehicle?
Cab lights themselves do not have a direct impact on the performance of a vehicle. However, the installation process may require modifications to the electrical system, which could potentially affect the performance of the vehicle if not done properly.
Additionally, it’s important to consider the weight of the cab lights and how they may impact the weight distribution of the vehicle. This could potentially affect the handling and stability of the vehicle, particularly at higher speeds or in windy conditions.
Overall, while cab lights themselves do not directly impact the performance of a vehicle, it’s important to consider the installation process and weight distribution to ensure that the vehicle remains safe and stable on the road.
Are cab lights legal?
Cab lights are legal in most areas, but the specific regulations can vary depending on the state or country in which the vehicle is registered. In the United States, for example, each state has its own regulations regarding cab lights, including color, height, and placement requirements.
It’s important to research and follow the specific regulations in your area to avoid potential fines or legal issues. Some common regulations include:
- Color: Some states restrict the color of cab lights to amber or white, while others allow additional colors such as blue or green.
- Height: Cab lights are typically required to be mounted at a certain height, often between 12-14 inches above the roof of the vehicle.
- Placement: Cab lights should be positioned in a way that does not obstruct the driver’s view or other vehicle signals.
In addition to state regulations, it’s also important to consider federal regulations, such as those set by the National Highway Traffic Safety Administration (NHTSA), which regulates the use of lighting equipment on vehicles.
Overall, while cab lights are generally legal, it’s important to research and follow the specific regulations in your area to avoid potential legal issues.
What types of cab lights are available?
There are several types of cab lights available on the market today. Some of the most common types include:
- Roof-mounted cab lights: These are the most traditional type of cab lights and are typically mounted on the roof of the vehicle. They come in a variety of shapes and sizes and can be customized with different colors and LED patterns.
- Grille-mounted cab lights: These cab lights are mounted on the grille of the vehicle and are often smaller than roof-mounted cab lights. They can be a good alternative for vehicles that cannot accommodate roof-mounted lights.
- Mirror-mounted cab lights: These cab lights are mounted on the side mirrors of the vehicle and are often used on smaller vehicles or pickup trucks.
- Underbody cab lights: These cab lights are mounted underneath the vehicle and can be used to illuminate the ground around the vehicle. They are often used for off-road vehicles or as a decorative addition to show cars.
- Interior cab lights: These cab lights are mounted inside the vehicle and are used to provide interior illumination. They can be a good option for commercial vehicles or recreational vehicles.
Overall, the type of cab lights you choose will depend on your personal preference, the type of vehicle you have, and the purpose for which you plan to use them.
Can cab lights be installed on any vehicle?
Cab lights can be installed on most vehicles, but it’s important to consider the size and shape of the vehicle before making a decision. Vehicles with flat, straight roofs are typically the best candidates for roof-mounted cab lights, while vehicles with curved roofs may require more specialized installation techniques.
In addition to the shape of the roof, it’s also important to consider the weight capacity of the vehicle’s roof. Cab lights can be quite heavy, especially if you choose larger or more elaborate designs. It’s important to ensure that the roof of your vehicle is capable of supporting the weight of the cab lights without causing damage or compromising the vehicle’s stability.
Overall, while cab lights can be installed on most vehicles, it’s important to consider the size and shape of your vehicle and to ensure that the roof is capable of supporting the weight of the lights before making a decision.
Can cab lights be removed or changed once installed?
Yes, cab lights can be removed or changed once they are installed. However, the process for removal or changing will vary depending on the type of cab lights and the installation method used.
Roof-mounted cab lights, for example, are typically attached using screws and a wiring harness. To remove or change these lights, you will need to remove the screws and disconnect the wiring harness. This process can be relatively straightforward but may require some mechanical skill and knowledge.
Grille-mounted and mirror-mounted cab lights, on the other hand, are often installed using adhesive or mounting clips. To remove or change these lights, you will need to carefully remove the adhesive or clips without damaging the vehicle’s paint or exterior. This process can be more challenging and may require the use of specialized tools or techniques.
Overall, while cab lights can be removed or changed once they are installed, the process will depend on the type of cab lights and the installation method used. If you are unsure about how to remove or change your cab lights, it may be best to consult with a professional installer or mechanic.
Are cab lights legal?
The legality of cab lights varies by location and jurisdiction. In some areas, cab lights are strictly regulated or prohibited altogether. In other areas, they may be legal but subject to certain restrictions or requirements.
For example, in the United States, cab lights are regulated by the Federal Motor Carrier Safety Administration (FMCSA) for commercial vehicles. According to the FMCSA regulations, roof-mounted cab lights can be installed on commercial vehicles but must be amber in color and cannot be illuminated while the vehicle is in motion on a public road. Additionally, the lights must be installed in a manner that does not obscure the driver’s view of the road.
In other areas, the legality of cab lights may be determined by state or local laws. It’s important to research the specific laws and regulations in your area before installing cab lights on your vehicle to ensure that you are in compliance with all applicable regulations.
Overall, while cab lights can be a stylish and functional addition to your vehicle, it’s important to consider the legal implications before installing them. If you are unsure about the legality of cab lights in your area, it may be best to consult with a legal professional or regulatory agency before proceeding with installation.
How much do cab lights cost?
The cost of cab lights can vary widely depending on the type of lights, the brand, and the installation method. Generally, roof-mounted cab lights tend to be more expensive than grille-mounted or mirror-mounted lights due to the complexity of the installation process.
On the low end, basic cab light kits can be purchased for around $50 to $100. These kits typically include a set of lights and a wiring harness, but may not include any mounting hardware or installation instructions.
Mid-range cab light kits can cost anywhere from $100 to $300. These kits often include higher quality lights and may come with mounting hardware and installation instructions. Some mid-range kits may also include additional features, such as LED lighting or multiple color options.
On the high end, premium cab light kits can cost $300 or more. These kits often feature advanced lighting technology, durable construction materials, and a wider range of mounting options. They may also come with additional features, such as wireless controls or custom design options.
It’s important to keep in mind that these prices are for the cab lights themselves and do not include the cost of installation, which can vary depending on the complexity of the installation and the expertise of the installer. If you are considering installing cab lights on your vehicle, it’s important to budget for both the cost of the lights and the cost of installation.
How do you install cab lights?
The installation process for cab lights will vary depending on the type of lights and the specific vehicle. However, the general process for installing roof-mounted cab lights is as follows:
- Choose a location for the lights: The first step is to choose a location for the cab lights on the roof of the vehicle. This can vary depending on the type of lights and the desired appearance.
- Drill mounting holes: Once the location has been determined, drill mounting holes in the roof of the vehicle to secure the lights. Make sure to measure carefully and use a template if necessary to ensure that the holes are spaced correctly.
- Install gaskets: Place gaskets over the mounting holes to prevent water and debris from entering the vehicle.
- Mount the lights: Secure the lights to the roof of the vehicle using bolts or screws. Make sure to follow the manufacturer’s instructions for securing the lights to prevent damage to the vehicle.
- Wire the lights: Connect the wiring harness to the lights and run the wires through the roof of the vehicle and into the cab. Make sure to connect the wires to the appropriate power source and use wire connectors to prevent any loose connections.
- Test the lights: Once the lights are installed and wired, test them to ensure that they are functioning properly. Make any necessary adjustments to the wiring or mounting if necessary.
It’s important to note that installing cab lights can be a complex process and should be done by a professional installer or someone with experience in vehicle customization. Additionally, before installing cab lights, be sure to research the specific regulations in your area to ensure that you are in compliance with all applicable laws and regulations.
How do you remove cab lights?
The process for removing cab lights will vary depending on the specific lights and vehicle. However, the general process for removing roof-mounted cab lights is as follows:
- Remove the wiring: Before attempting to remove the lights, disconnect the wiring harness from the lights and any power source to prevent electrical shock or damage to the vehicle.
- Remove the mounting hardware: Using a socket wrench or other appropriate tools, remove the bolts or screws securing the lights to the roof of the vehicle.
- Remove the gaskets: Once the mounting hardware is removed, carefully remove the gaskets from the mounting holes in the roof of the vehicle.
- Clean the mounting holes: Use a cleaning solution and a clean cloth to remove any debris or residue from the mounting holes in the roof of the vehicle.
- Repair any damage: If there is any damage to the roof of the vehicle, such as holes or scratches, repair the damage as necessary to prevent water or debris from entering the vehicle.
It’s important to note that removing cab lights can be a complex process and should be done carefully to prevent damage to the vehicle. If you are unsure about the process or do not have experience with vehicle customization, it may be best to seek the assistance of a professional installer.
Can you install cab lights yourself?
Yes, it is possible to install cab lights yourself if you have some experience with vehicle customization and the necessary tools. However, it’s important to note that installing cab lights can be a complex process and should be done carefully to prevent damage to the vehicle and ensure that the lights function properly.
Before attempting to install cab lights yourself, it’s important to familiarize yourself with the process and any potential challenges you may encounter. You should also ensure that you have all of the necessary tools and materials, including the lights themselves, wiring, mounting hardware, and any necessary gaskets or seals.
The specific installation process will vary depending on the type of cab lights you are installing and the make and model of your vehicle. However, the general process for installing roof-mounted cab lights is as follows:
- Select the location: Choose the location on the roof of the vehicle where you want to install the lights, ensuring that the location is level and that the lights will be evenly spaced.
- Mark the mounting holes: Use a marker or other appropriate tool to mark the locations for the mounting holes on the roof of the vehicle.
- Drill the holes: Using a drill or other appropriate tool, carefully drill the mounting holes in the roof of the vehicle, being careful not to damage the roof or any existing wiring or components.
- Install the gaskets: Once the mounting holes are drilled, install the gaskets or seals into the mounting holes to provide a secure and waterproof seal.
- Install the lights: Place the lights into the mounting holes and secure them in place using the mounting hardware, being careful not to overtighten or damage the hardware.
- Connect the wiring: Connect the wiring from the lights to the power source, following the manufacturer’s instructions and any applicable electrical codes.
- Test the lights: Once the installation is complete, test the lights to ensure that they are functioning properly and that there are no electrical issues or leaks.
It’s important to note that if you are unsure about the installation process or do not have experience with vehicle customization, it may be best to seek the assistance of a professional installer. This can help ensure that the installation is done properly and that the lights function correctly and safely.