Partsam Trailer RV LED Side Marker Light 4x2 Red/Amber 14-Diode DOT-Approved Low-Power

Partsam 14x Double Bullseye LED marker light is a DOT-approved 4" x 2" rectangular red/amber side and clearance lamp with 14 high-intensity diodes for trailers, RVs and trucks.

This compact, sealed LED marker combines a tiger-eye double-bubble lens with 14 individual diodes (7 amber + 7 red) to provide visible, low-power side/clearance illumination for vehicles and trailers. Built for surface-mount installs, the lamp measures about 100mm x 50mm x 25mm (4" x 2" x 1") and is suitable as a side marker, clearance lamp or identification light. The unit is DOT approved and designed to withstand exterior conditions while improving nighttime visibility without drawing much current.

How do I mount this LED marker on my trailer or RV?

Installation is surface-mount and straightforward for most DIYers: the light secures to a flat surface and connects to your vehicle's 12V wiring. Note the wiring exit location before mounting to ensure a clean, weatherproof routing.

• Surface-mount rectangular housing for easy screw installation
• Runs on standard 12V vehicle systems
• Wires exit from the center (confirm image 2) — check fit before final attachment
• Sealed lens and housing to resist moisture and road spray

What do the red and amber diodes do and when should each be used?

The lamp integrates 14 diodes split into amber and red zones to satisfy common side/clearance marking conventions. Use amber toward the front or middle for side marker or running functions and red toward the rear for clearance/identification, depending on local regulations and vehicle layout.

• 7 amber LEDs for front/side signaling or running light use
• 7 red LEDs for rear/clearance or identification mounting
• Meets DOT guidance for marker/clearance lamp applications
• Low current draw extends battery life compared with incandescent bulbs

Will this light fit my vehicle and survive outdoor conditions?

At roughly 4" x 2" x 1", the lamp is a compact, universal shape compatible with most trailers, campers, boats and trucks that accept rectangular side markers. The sealed lens and durable housing make it suitable for exterior exposure to road splash and normal weather, while LEDs offer long service life compared with filament bulbs.

• Compact 100mm x 50mm x 25mm footprint fits common marker light cutouts
• Sealed construction for resistance to moisture and dust
• LED array reduces heat and need for frequent replacement
• Universal fit for many trailer, RV, camper and light-duty truck applications

Are there any wiring or orientation cautions I should know?

Yes — the manufacturer notes that wire leads exit from the center of the lamp (check product image two), although some production runs routed wires toward a lower corner. Confirm the lead position before final mounting to avoid rerouting or trimming the mounting area.

• Verify wire exit location against supplied images to plan routing
• Designed for 12V systems — ensure correct polarity when connecting
• Use appropriate gaskets or sealant at the mounting surface for a watertight fit
• Follow local wiring and vehicle code for marker light placement and color

Who this is for: This Partsam double bullseye LED marker light is aimed at trailer owners, RV and camper DIYers, fleet operators and light truck users who need a compact, DOT-approved side or clearance lamp with long-lasting LEDs. It's especially useful when you want a weatherproof, low-current replacement for incandescent marker lights and a universal 4" x 2" option that fits a wide range of exterior mounting locations.