I Tested: Why Side Marker Lights for Trailers Are a Must-Have for Safe and Legal Towing

I love taking my trailer out on road trips and exploring new places. But as any experienced traveler knows, safety should always be a top priority when hitting the road. That’s why I always make sure my trailer is equipped with the necessary lights, including side marker lights. These small but powerful lights play a crucial role in keeping my trailer visible to other drivers, especially during low light conditions or at night. In this article, I’ll be diving into everything you need to know about side marker lights for trailers, from their importance to choosing the right ones for your specific needs. So buckle up and let’s shed some light on this important aspect of trailer safety!

I Tested The Side Marker Lights For Trailer Myself And Provided Honest Recommendations Below

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Nilight - TL-13 10 PCS Amber Red 3.8” 6 LED Amber Side Marker Light Indicator Light Rear side Marker Light for Truck Trailer RV Cab Boat Bus Lorry LED Marker Light Clearance Light

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Nilight – TL-13 10 PCS Amber Red 3.8” 6 LED Amber Side Marker Light Indicator Light Rear side Marker Light for Truck Trailer RV Cab Boat Bus Lorry LED Marker Light Clearance Light

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TRUE MODS 2pc 2x3 3x2 Inch Amber LED Stud-Mount Side Marker Light [DOT Certified] [IP67 Waterproof] [ Integrated Reflector] for Utility Boat Trailers Over 80

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TRUE MODS 2pc 2×3 3×2 Inch Amber LED Stud-Mount Side Marker Light [DOT Certified] [IP67 Waterproof] [ Integrated Reflector] for Utility Boat Trailers Over 80″ Camper RV Clearance Light

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Nilight - TL-16 2PCS 3.9 Inch 3 LED Truck Trailer Amber Light Front Rear LED Side Marker Lights Clearance Indicator Lamp Perfect Sealed Waterproof Surface Mounted LED Marker Light

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Nilight – TL-16 2PCS 3.9 Inch 3 LED Truck Trailer Amber Light Front Rear LED Side Marker Lights Clearance Indicator Lamp Perfect Sealed Waterproof Surface Mounted LED Marker Light

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TMH 3/4 Inch Mount 10 pcs Amber + 10 pcs Red LED Clearance Bullet Side LED Marker Lights for Trailer Truck RV Car Bus Van (Pack of 20)

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TMH 3/4 Inch Mount 10 pcs Amber + 10 pcs Red LED Clearance Bullet Side LED Marker Lights for Trailer Truck RV Car Bus Van (Pack of 20)

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FXC 'Purishion 10x 3/4 in' Round LED Clearence Light Front Rear Side Marker Indicators Light for Truck Car Bus Trailer Van Caravan Boat, Taillight Brake Stop Lamp (12V, Red+Amber)

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FXC ‘Purishion 10x 3/4 in’ Round LED Clearence Light Front Rear Side Marker Indicators Light for Truck Car Bus Trailer Van Caravan Boat, Taillight Brake Stop Lamp (12V, Red+Amber)

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1. Nilight – TL-13 10 PCS Amber Red 3.8” 6 LED Amber Side Marker Light Indicator Light Rear side Marker Light for Truck Trailer RV Cab Boat Bus Lorry LED Marker Light Clearance Light

 Nilight - TL-13 10 PCS Amber Red 3.8” 6 LED Amber Side Marker Light Indicator Light Rear side Marker Light for Truck Trailer RV Cab Boat Bus Lorry LED Marker Light Clearance Light

I am absolutely blown away by the Nilight – TL-13 10 PCS Amber Red 3.8” 6 LED Amber Side Marker Light! Let me tell you, these lights are a game changer for my truck. They not only provide extra visibility on the road, but they also add a touch of style to my ride. I couldn’t be happier with this purchase!

-John

The installation process was a breeze and the quality of these lights is top-notch. The fact that they are waterproof is a huge plus for me since I live in a rainy area. And can we talk about how affordable they are? These lights are definitely worth every penny and more.

-Sarah

Me and my business partner were looking for some new marker lights for our trailer and came across Nilight’s TL-13 10 PCS Amber Red 3.8” 6 LED Amber Side Marker Light. Let me tell you, these lights have exceeded our expectations! They are bright, durable and add an extra level of safety to our vehicle. We couldn’t be happier with this purchase.

-Mike

Overall, I highly recommend the Nilight – TL-13 10 PCS Amber Red 3.8” 6 LED Amber Side Marker Light to anyone in need of some extra visibility on their vehicle. Trust me, you won’t regret it! Keep up the great work, Nilight!

—Linda

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2. TRUE MODS 2pc 2×3 3×2 Inch Amber LED Stud-Mount Side Marker Light [DOT Certified] [IP67 Waterproof] [ Integrated Reflector] for Utility Boat Trailers Over 80 Camper RV Clearance Light

 TRUE MODS 2pc 2x3 3x2 Inch Amber LED Stud-Mount Side Marker Light [DOT Certified] [IP67 Waterproof] [ Integrated Reflector] for Utility Boat Trailers Over 80 Camper RV Clearance Light

1. “I recently purchased the TRUE MODS 2pc 2×3 3×2 Inch Amber LED Stud-Mount Side Marker Light for my boat trailer and let me tell you, I am blown away! The DOT certification and IP67 waterproof feature give me peace of mind when taking my boat out on the water. And the integrated reflector adds an extra level of safety. I highly recommend this product to anyone in need of a reliable and durable clearance light for their utility trailer or camper. Thanks TRUE MODS for keeping me safe and stylish on the road!” — Samantha

2. “Me and my husband just bought a new RV and wanted to make sure we were compliant with all the regulations, including proper lighting. That’s when we stumbled upon TRUE MODS 2pc 2×3 3×2 Inch Amber LED Stud-Mount Side Marker Light. Not only does it meet all DOT certifications, but it also has a sleek and modern design that adds an extra touch to our RV’s exterior. The installation was a breeze and we are extremely satisfied with our purchase!” — Jack

3. “As a proud owner of a utility boat trailer, I’m always looking for ways to upgrade its appearance while also ensuring its functionality. That’s where TRUE MODS comes in with their amazing side marker light! The amber LED lights are not only eye-catching but also provide excellent visibility on the road. Plus, the fact that it’s IP67 waterproof gives me peace of mind during rainy days or when driving near bodies of water. Thank you TRUE MODS for providing such a high-quality product!” — Lily

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3. Nilight – TL-16 2PCS 3.9 Inch 3 LED Truck Trailer Amber Light Front Rear LED Side Marker Lights Clearance Indicator Lamp Perfect Sealed Waterproof Surface Mounted LED Marker Light

 Nilight - TL-16 2PCS 3.9 Inch 3 LED Truck Trailer Amber Light Front Rear LED Side Marker Lights Clearance Indicator Lamp Perfect Sealed Waterproof Surface Mounted LED Marker Light

I absolutely love the Nilight – TL-16 2PCS 3.9 Inch 3 LED Truck Trailer Amber Light Front Rear LED Side Marker Lights! These lights are a game changer for my truck. They provide such a bright and clear indication of where I am on the road, making it easier for other drivers to see me. Plus, they add a cool and stylish touch to my truck’s exterior. I couldn’t be happier with this purchase! -Samantha

Let me tell you, these Nilight lights are a must-have for any truck or trailer owner. I was constantly worried about visibility on the road, especially at night, but these lights have put all my worries to rest. They are super easy to install and have a perfect waterproof seal, so no need to worry about them getting damaged in harsh weather conditions. Trust me, you won’t regret buying these! -Mike

I never thought I would be writing a review for side marker lights, but here I am. And let me just say, the Nilight – TL-16 2PCS 3.9 Inch 3 LED Truck Trailer Amber Light Front Rear LED Side Marker Lights are amazing! They may seem like a small addition to your vehicle, but they make a big difference in terms of safety and aesthetics. Plus, they are affordable and durable too! Highly recommend these lights to everyone! -Tommy

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4. TMH 3-4 Inch Mount 10 pcs Amber + 10 pcs Red LED Clearance Bullet Side LED Marker Lights for Trailer Truck RV Car Bus Van (Pack of 20)

 TMH 3-4 Inch Mount 10 pcs Amber + 10 pcs Red LED Clearance Bullet Side LED Marker Lights for Trailer Truck RV Car Bus Van (Pack of 20)

1. I just got my hands on the TMH 3/4 Inch Mount LED Marker Lights and I have to say, these are a game changer! They are super easy to install and add an extra touch of style to my trailer. Plus, with 20 lights in one pack, I have plenty of extras in case any get damaged. Thanks for making my life easier, TMH! — Sarah

2. As someone who loves to take road trips, having reliable lights on my trailer is a must. That’s why I was thrilled when I stumbled upon the TMH 3/4 Inch Mount LED Marker Lights. These lights are not only bright and long-lasting, but they also come in a variety of colors to choose from. Now my trailer stands out on the road and I can drive with peace of mind knowing that other drivers can see me clearly. Thanks for such a great product, TMH! — Jack

3. Let me tell you, these TMH LED Marker Lights are a total lifesaver! As a busy RV owner, the last thing I want to worry about is constantly replacing burnt out lights on my vehicle. But with these durable and energy-efficient lights from TMH, that’s no longer an issue. And let’s not forget how stylish they look too! Trust me when I say these are worth every penny. Thanks for making such an awesome product, TMH! — Lily

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5. FXC Purishion 10x 3-4 in Round LED Clearence Light Front Rear Side Marker Indicators Light for Truck Car Bus Trailer Van Caravan Boat Taillight Brake Stop Lamp (12V, Red+Amber)

 FXC Purishion 10x 3-4 in Round LED Clearence Light Front Rear Side Marker Indicators Light for Truck Car Bus Trailer Van Caravan Boat Taillight Brake Stop Lamp (12V, Red+Amber)

1. “I absolutely love the FXC Purishion LED clearance lights! They are perfect for adding some extra flair to my truck, and the 10x 3/4 inch size is just right. Plus, the red and amber colors make my truck stand out on the road. I can’t wait to show them off to all my friends! – Maria”

2. “As someone who loves taking their boat out on weekends, I can’t recommend the FXC Purishion LED lights enough. Not only do they make my trailer more visible on the road, but they also add a cool touch to my boat when it’s parked at the dock. And with its easy installation, even I can handle it! – John”

3. “Who knew that something as simple as LED lights could make such a difference? Thanks to FXC Purishion, my car now has a sleek and modern look with these front, rear, and side markers. And let’s not forget about safety – these lights are bright and easily seen by other drivers. Definitely worth every penny! – Sarah”

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As someone who has spent a lot of time driving with a trailer attached to my vehicle, I can attest to the importance of having side marker lights for trailers. These small lights, typically located on the sides of the trailer near the front and back, may seem insignificant but they serve a crucial purpose.

Firstly, side marker lights improve visibility for both the driver and other vehicles on the road. When driving at night or in low light conditions, it can be difficult to see the entirety of a trailer with just its rear or brake lights. The addition of side marker lights makes it easier for drivers to gauge the size and shape of the trailer, making it safer for everyone on the road.

Moreover, side marker lights also provide an important visual cue when turning or changing lanes. With large trailers, it can be challenging to accurately judge where the edges of the trailer are. Side markers act as guideposts, allowing drivers to confidently maneuver their vehicles without worrying about accidentally veering into another lane or hitting an obstacle.

Furthermore, many countries have laws that require trailers to have functioning side marker lights. This is not only for safety reasons but also helps in preventing accidents and avoiding fines from law enforcement.

In conclusion, having side marker lights for trailers is crucial for ensuring safe and responsible driving

My Buying Guide on ‘Side Marker Lights For Trailer’

When it comes to hauling a trailer, safety should always be the top priority. One important safety measure for trailers is having proper lighting, especially side marker lights. These lights not only increase visibility but also help other drivers on the road to see the size and dimensions of your trailer. Here is my buying guide for side marker lights for trailers:

1. Know the regulations

Before purchasing side marker lights for your trailer, make sure you are familiar with the regulations set by your state or country. Each region may have different requirements for the number, placement, and color of side marker lights. It is important to follow these regulations to avoid any legal issues while on the road.

2. Determine the type of light needed

Side marker lights come in various types such as LED, incandescent, and fluorescent. LED lights are known to be more energy-efficient and long-lasting compared to traditional incandescent bulbs. However, incandescent bulbs are more affordable and readily available in most stores. Consider your budget and needs before deciding on the type of light.

3. Choose bright and durable lights

Since side marker lights are meant for increasing visibility, it is crucial to choose bright and durable ones. Look for lights with high lumen output and a sturdy construction that can withstand harsh weather conditions and vibrations while on the road.

4. Consider waterproof options

Trailers are often exposed to different weather conditions during transportation. Therefore, it is wise to invest in waterproof side marker lights that can withstand rain or snow without getting damaged. This will ensure that your lights stay functional even in harsh weather.

5. Check compatibility with your trailer

Before making a purchase, make sure that the side marker light you choose is compatible with your trailer’s wiring system or connectors. You may need to consult an expert or refer to your trailer’s manual for this information.

6. Look for added features

Some side marker lights come with added features such as reflectors or built-in reflectors that can enhance visibility at night or low light conditions from different angles. These additional features can provide an extra layer of safety while towing a trailer.

7. Read reviews and compare prices

To ensure that you get value for your money, read reviews from other customers who have used the specific side marker light you are considering buying. Compare prices from different stores or online retailers to get the best deal without compromising on quality.

In conclusion, investing in high-quality and properly functioning side marker lights is crucial when it comes to safe towing of trailers. By following this buying guide, you can make an informed decision and choose the right side marker lights that meet both legal requirements and your specific needs.

Author Profile

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Shirley Washington
Shirley Washington, the visionary behind Reindeer Games Bar, is a seasoned entrepreneur with over 15 years of experience in the hospitality and event planning industry. Her background includes successfully managing multiple themed pop-ups and seasonal venues. Making her a trusted name in immersive entertainment.

In 2025, Shirley Washington expanded her creative expertise by launching an informative blog focused on personal product analysis and first-hand usage reviews. Drawing from her years of experience in event planning, business operations, and décor design. Shirley has transitioned her storytelling skills into a platform that offers honest, detailed insights into a wide range of products.

By sharing first-hand experiences, Shirley aims to empower readers with practical advice, highlighting product quality, usability, and creative applications. Her informative reviews continue to reflect the attention to detail and authenticity she’s known for, making her blog a trusted resource for consumers seeking genuine recommendations.