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

If you need a complete lighting kit to make a trailer, camper, motorhome or truck road-legal and more visible, this Partsam bundle supplies seven amber and seven red 4" rectangle LED marker lights. Each lamp houses six high-efficiency LEDs behind a reflex lens, and the units are built to mount on flat surfaces with simple two-wire connections. These lights are intended for 12V DC systems and include screws for installation.

How do these lights improve vehicle visibility at night?

The six bright LEDs per fixture produce a sharper, more noticeable signal than traditional bulbs while drawing far less current. The built-in reflex lens provides passive reflectivity even when the LEDs are off, increasing safety during low-light conditions.

• Six LED diodes per light for strong, consistent illumination
• Reflex lens adds passive reflectivity for parked or dark vehicles
• Amber for front/side placement, red for rear/side placement per road rules
• Lower power consumption extends vehicle electrical life

What are the size and mounting requirements?

Each rectangular lamp measures approximately 4" x 2" x 1" with about a 3" hole center-to-center, matching common camper and trailer marker cutouts. They’re designed for surface mounting: wires exit the back center and the kit includes screws for straightforward attachment.

• Overall size roughly 4" x 2" x 1" with ~3" hole spacing
• Surface-mount installation; drill a rear exit hole for wires
• Screws included; hand-tighten to avoid cracking the lens
• Recommended bead of silicone or RTV around lens after snapping on for extra sealing

Are these lights compatible with my vehicle and wiring?

These marker lights work on standard 12V DC systems found on most trailers, RVs, trucks and similar vehicles. They have a two-wire hookup: red for positive and black for ground, making them easy to integrate into existing trailer light circuits or new installations.

• Universal fit for 12V DC vehicles: RVs, trailers, trucks, campers, boats and buses
• Two-wire wiring: red = +12V, black = ground
• Lens snaps off for wiring access during installation
• DOT-approved for legal use where marker lights are required

How durable and weather-resistant are these marker lights?

Each lamp is sealed to resist moisture and road contaminants, and the housing is designed for exterior use. For added protection after installation, apply a thin bead of clear silicone or RTV around the lens joint to help prevent water entry at the mounting seam.

• Sealed design intended for exterior exposure
• Snap-on lens construction — avoid over-tightening screws
• Suggested silicone/RTV sealing for long-term leak protection
• DOT certification confirms suitability for road use

Who is this for: This 14-piece Partsam kit suits owners and installers who want a ready-to-fit solution for upgrading or replacing trailer and RV marker lighting—service shops, DIY trailer builders, fleet operators and individual owners who need DOT-compliant amber and red side/clearance lights. The set is practical for anyone working with 12V vehicle electrical systems seeking brighter, lower-draw lights with built-in reflectivity for added safety.