Partsam 14-Piece 4" LED Rectangle Trailer & RV Side Marker Lights — 7 Amber + 7 Red, Sealed Waterproof DOT

Partsam 14-piece set of 4-inch sealed LED rectangle side marker lights provides DOT-approved, waterproof amber and red clearance illumination for trailers, RVs, trucks and campers.

These compact, surface-mount LED marker lights combine a built-in reflex reflector with six bright diodes per unit to replace worn or missing clearance and identification lamps. The kit includes seven amber and seven red lamps, pre-drilled screw holes and hardwired two-conductor leads for 12V DC systems. Because the lens snaps into place, they’re quick to install on metal or composite trailer frames; a small bead of RTV silicone along the seam improves long-term weatherproofing.

How bright and durable are these LED marker lights?

Each light houses six LED diodes that deliver stronger, more focused illumination than incandescent bulbs while consuming less power. The sealed housing and reflex lens help maintain visibility and protect the LEDs from road spray and dust.

• 6 high-efficiency LEDs per lamp for brighter output and lower current draw
• Sealed, water-resistant housing suitable for exterior mounting
• Built-in reflector eliminates need for separate reflectors
• DOT-approved for compliance with safety regulations

What’s included and what are the physical dimensions?

The package supplies 14 rectangular marker lights—seven amber for front/side positions and seven red for rear/side positions—plus mounting screws. Each lamp measures approximately 4" long by 2" tall with a depth around 1" and about a 3" hole spacing for fasteners.

• 14 total lamps: 7 amber + 7 red
• Dimensions: ~4" x 2" x 1"; ~3" hole center spacing
• Surface-mount design with snap-on lens for quick attachment
• Screws included for immediate installation

How do you install and wire these marker lights?

Installation is straightforward: drill mounting holes in the frame or body, pass the wires through, secure the lamp with supplied screws, and snap the lens onto the housing. The lamps are hardwired with two leads—red for positive and black for ground—so they integrate directly with 12V vehicle lighting circuits.

• Two-conductor wiring: red = +12V, black = ground
• Drill a rear access hole in frame to feed wires through
• Do not overtighten screws to avoid cracking the lens
• Apply clear RTV or silicone along the seam after lens snap-on for extra sealing

Will these work on my RV, trailer or truck?

Yes—these oval-style clearance lamps are designed for universal 12V DC applications and fit the same footprint as many camper and trailer marker lights. They serve as side marker, clearance and identification lights and are suitable for a wide range of vehicles and trailers.

• Compatible with RVs, travel trailers, fifth wheels, toy haulers and campers
• Fit for trucks, pickups, vans, buses, tractors, boats and utility trailers
• Functions: side marker, clearance lamp, identification lamp, trailer light
• Works with standard 12V automotive/marine electrical systems

Who this is for: Installers, DIY RV owners and fleet managers who need a reliable, DOT-compliant set of replacement side marker lights will appreciate this Partsam kit. It’s geared toward anyone replacing worn reflectors and incandescent markers with low-draw LEDs on campers, trailers and commercial vehicles who wants an easy surface-mount solution with built-in reflectivity and long-lasting diodes.