Partswcgg LED Trailer Marker Lights 20-Pack (10 Amber, 10 Red) 2" Round 9-LED 12V Flush-Mount

Partswcgg 2" round LED trailer marker lights are a 20-piece set (10 amber, 10 red) of 9-LED, 12V flush-mount side/clearance lamps designed for universal fit on trailers and light-duty vehicles.

These compact 2-inch round LED lights deliver concentrated visibility using nine diodes in each lens, and come as a mixed pack to cover both front/rear clearance and side marker requirements. Built with a two-prong pigtail (white negative, black positive) and a rubber grommet mounting, they are intended for typical 12 V DC systems found on trailers, RVs, trucks, ATVs and similar vehicles. Below you’ll find practical details about fit, wiring, installation and typical uses so you can decide whether they suit your rig.

How do these lights fit my trailer and what hole size do they need?

Each lamp is a flush-mount style designed to compress into a grommet for a neat finish. The outer bezel measures about 2-7/8", while the inner insert is roughly 2"; installers typically cut a mounting hole near 2-1/4" for a secure fit.

• Outer diameter: ~2-7/8"
• Inner diameter (insert): ~2"
• Recommended drilling/hole size: about 2-1/4"
• Mounting height with grommet: ~1" (varies by insertion depth)

What wiring steps are required to install the LED marker lights?

Wiring is straightforward: each light has a two-conductor pigtail where white is the negative/ground and black is the positive/power lead. Confirm your trailer’s wiring polarity and fuse the circuit appropriately; using heat-shrink connectors or crimp terminals will improve durability against moisture and vibration.

• Power: 12 V DC systems
• Black lead = positive, White lead = negative/ground
• Use sealed connectors or dielectric grease for weatherproofing
• Fuse the circuit according to vehicle wiring guidelines

Can these markers perform as both side marker and clearance lights?

These 2" LEDs can serve either as a side marker or as a clearance light depending on where you mount them, but they are not intended to perform both functions simultaneously from the same unit. If regulations or your setup require both roles, install separate fixtures for each function at the required positions.

• Not dual-function simultaneously — choose one role per lamp
• Install additional lights if you need both side and clearance markers
• Color placement matters: amber typically goes on the side/front, red on the rear

Which vehicles and applications are these LEDs suited for?

These universal 9-LED marker lights work across a broad range of 12V platforms including trailers, RVs, pickup trucks, semi trailers, ATVs, buses and marine tugs where compact, low-profile marker lighting is needed. They’re ideal for fleet maintenance, replacement parts, and new builds where consistent color and quantity are required.

• Compatible with most 12V DC vehicles and trailers
• Good for fleet or bulk replacement — pack of 20 (10 amber + 10 red)
• Flush-mount design keeps lights protected from snagging
• 9 LEDs per lens for concentrated, energy-efficient illumination

Who is this for? This Partswcgg 20-piece set is aimed at trailer owners, fleet managers, RV enthusiasts and DIY mechanics who need a reliable supply of compact, bright marker lights in both amber and red. It’s especially useful when replacing multiple worn fixtures or outfitting a new trailer where color-specific placement and a neat flush fit are important. If you require both side-marker and clearance functions, plan for separate fixtures per required location and follow local vehicle lighting regulations when mounting and wiring.