Partsam 20pc 3.8" LED Side Marker Lights — Amber & Red, DOT‑Approved, Waterproof, Low‑Profile

Partsam 20-piece 3.8" LED side marker and clearance light set provides high-intensity, DOT-approved amber and red signaling for trailers, trucks, RVs, and more.

These low-profile marker lights combine bright six-LED modules with simple wiring and waterproof housings so you can add compliant, visible signaling to virtually any 12V vehicle. The kit includes 20 lights in amber and red, mounting foam and screws, and pre-attached ground and positive leads for a fast retrofit or new installation. Designed for broad compatibility, the lights serve as side markers, turn indicators, running/driving lights and decorative accents on trailers, campers, trucks, motorcycles and boat trailers.

How bright and visible are these marker lights at night and in daylight?

The Partsam markers use six high-intensity LEDs per lamp to deliver a concentrated beam that stays visible in a range of lighting conditions. They meet DOT visibility expectations for marker and clearance lights, improving recognition by other road users.

• Six high-intensity LEDs per fixture for crisp illumination
• Amber and red color options for appropriate placement and compliance
• Compact 3.8" housing concentrates light for distance visibility
• DOT-approved design for on-road use

Is installation complicated — what wiring and mounting materials are included?

Installation is straightforward: each light has a red positive and black negative wire pre-attached for easy connection to a 12V circuit. The kit ships with screws and foam tape bases plus peel-off gaskets to create a snug, waterproof seal against flat or slightly curved surfaces.

• Pre-attached red (positive) and black (negative) wires for quick hookups
• Peel-off gasket for waterproof mounting and reduced vibration
• Screws and foam tape base included for secure attachment options
• Low-profile design minimizes snagging and maintains vehicle lines

What vehicles and applications are these lights best suited for?

These marker lights are designed for universal 12V systems, making them suitable for trailers, trucks, campers, RVs, motorcycles, golf carts and marine trailers. Their small footprint and robust construction allow use as side markers, turn signals, brake or running lights, and decorative underglow accents.

• Fits most 12V vehicles: trailers, trucks, RVs, motorcycles, boat trailers
• Usable as side markers, clearance lights, brake or running lights
• Durable, weather-resistant housing for outdoor and marine environments
• Compact size enables mounting in tight or visible locations

Are these lights weatherproof and durable for long-term use?

The units feature a sealed design with a peel-off gasket and waterproof housing to resist water intrusion and road spray. Their LEDs run cooler and last longer than incandescent bulbs, while the low-profile shell helps reduce damage from impacts and road debris.

• Waterproof gasket and sealed housing to block moisture
• LED technology offers longer service life and lower heat output
• Sturdy casing resists road debris and light impacts
• Includes foam tape base to reduce vibration and wear

Who is this for: This 20-piece Partsam marker light set is aimed at owners and technicians who need an affordable, DOT-approved lighting solution for trailers, RVs, work trucks, campers and small recreational vehicles. It's a solid choice for fleet maintenance teams, DIY installers upgrading visibility, or anyone replacing faded or damaged side markers with compact, waterproof LED fixtures that meet road requirements.