Trailer side marker lights, 9.6x2x1 cm PVC truck side warning lights, 12V-24V W-SMD model, available in red, yellow, white, blue, or green for vehicle modification and custom lighting applications.
Trailer Side Marker Warning Lights: 12V-24V PVC Housing in Five Colours

Enhance the safety and visibility of your trailer or modified vehicle with these side marker lights. Designed for straightforward installation, they provide essential side illumination to meet legal requirements and alert other road users to your vehicle's presence and dimensions. The lights are built with a practical PVC housing, chosen for its durability against the elements, and are powered by an efficient W-SMD LED module. With a choice of five colours—red, yellow, white, blue, or green—you can select the exact hue required for your specific application, whether it's for brake indication, clearance marking, or custom aesthetic lighting on trucks and trailers.
Features and Construction

These side lights combine a robust physical build with reliable electrical performance for vehicle use. The construction prioritises practical durability and clear visibility from the side profile of larger vehicles.
Material and Build
The primary housing material is PVC (Polyvinyl Chloride), which offers a solid and resilient casing for the internal LED components. This material provides a degree of weather resistance, helping to protect the light from road spray, dust, and minor impacts commonly encountered by trailer and truck lighting. The build is centred around the W-SMD model of LED, which delivers the light output while maintaining a low power draw of just 3 watts, contributing to overall vehicle electrical efficiency.
Size and Practical Fit
With dimensions of 9.6 cm in length, 2 cm in width, and 1 cm in depth, these lights are designed to be compact. This slim profile allows them to be mounted discreetly yet effectively along the sides of trailers, on truck bodywork, or on other modified vehicles where space for additional lighting may be limited. Their small size does not compromise their function as a clear side marker, making them a practical solution for fulfilling mandatory side lighting regulations or adding supplementary warning lights.
Uses and Placement

These lights serve a specific functional role in vehicle lighting systems, primarily focused on safety and compliance. Their application is dictated by both practical necessity and the choice of colour selected.
Event or Professional Use
For commercial trailers, caravans, or trucks used in haulage, these side markers are a functional necessity. The choice of colour is critical here; red or yellow lights often serve as side marker or clearance lights, while white may be used for front side markers on some vehicles. Installing them correctly helps ensure the vehicle meets Department for Transport (DfT) or other regulatory standards for width and presence, which is essential for professional operators to avoid penalties and improve road safety for other users.
Everyday Home Use
For personal trailers, horse boxes, boat trailers, or custom vehicle projects, these lights offer a versatile lighting component. The availability of five colours, including blue and green, provides scope for customisation beyond standard safety lighting. An enthusiast modifying a car or building a kit car might use a specific colour to match a theme or create unique side accent lighting, leveraging the light's compact size for integrated looks. The universal 12V-24V voltage range makes them compatible with most personal vehicle electrical systems.
Benefits and Buying Value

The value of these side marker lights lies in their specific functionality, material choice, and the options they provide, rather than in invented premium claims.
Reuse and Low Maintenance
The PVC housing contributes to a product that is designed for sustained use in an outdoor automotive environment. Its resistance to weathering means the lights are less likely to degrade quickly from sun, rain, or temperature changes, supporting reuse across multiple seasons or on different trailer projects. The LED light source itself is known for a long operational life and low failure rate compared to traditional bulbs, which can reduce the frequency of replacements and associated maintenance over time.
Why Choose This Product
This product offers a clear combination of practical specifications: a defined size for easy fitting, a choice of five colours for specific applications, and a voltage range that covers most automotive uses. The PVC construction indicates a focus on durability appropriate for its price point and intended use. For anyone needing to add or replace side marker lights on a trailer, truck, or modified vehicle, it provides a straightforward component with defined options, allowing you to select the exact colour required by law or by your project's design.


