Partsam 10-Pack 2" Round 4-LED Trailer Side Marker Lights (5 Amber + 5 Red), DOT Approved, Sealed Flush Mount, 12V
Product description
If you’re refreshing trailer lighting, side markers are one of those upgrades that you notice immediately—especially when they’re sealed and built to survive real weather. This Partsam 10-pack is designed as a simple, repeatable replacement setup: 5 amber and 5 red, round 2-inch clearance/side marker style, with flush-mount grommets and wiring pigtails.
That said, it’s not a “fits everything without effort” kind of product. On paper, the install requires drilling a hole in the mounting surface so the included grommet can seat properly, and you’ll want to confirm your vehicle’s DC 12V system and placement requirements before you commit.
The essentials
This kit gives you ten sealed 2-inch round LED marker lights with a reflex lens, intended for use as either a side marker light or a clearance light. Since it’s DOT Approved, it targets buyers who want compliant-looking lighting for trucks, trailers, and similar vehicles—without having to source ten separate parts.
Each light uses four LEDs and is described as “sonically sealed,” with a waterproof housing and lens unit that’s submersible. In practical terms, that matters if your lights spend time in rain, road spray, washing, or off-road mess. No one wants corroded housings or foggy lenses after a season.
What you’ll notice in day-to-day use
LEDs are the heart of the value here. Compared with incandescent-style replacements, LED units are generally the kind of swap that can reduce how often you’re dealing with dead bulbs. Partsam also states a lifespan of 30,000+ hours, which is the kind of figure that only really pays off if you’re mounting these for the long haul.
The wiring approach is also straightforward: it’s a 2-wire connection where black is negative and red is positive. That’s helpful for installation planning, especially if you’re doing a clean pass with your harness.
One small detail worth paying attention to: this kit is flush mount with grommets and pigtails included, but the grommet needs a properly sized hole. Partsam specifically calls out drilling about 2.25"–2.3" to fit the grommet.
Key specifications that affect installation
Here’s what can influence whether these work for your setup.
- Outer Diameter: 2.5 in.
- Inner Diameter: 2 in.
- High Diameter: 0.78 in. (with grommet)
- Recommended hole size for the grommet: drill about 2.25 in.–2.3 in.
- Connection: 2-wire (Black = negative, Red = positive)
- Voltage: DC 12V
- Lens behavior: reflex lens
- Build intent: sealed housing, waterproof and described as submersible
If you’ve ever bought marker lights that “seemed close” but didn’t match your cutout size, you already know why this matters.
Where it shines (and where it can fall short)
It’s a solid pick if you’re maintaining a DC 12V truck, trailer, bus, service van, utility truck, parade float, horse trailer, utility trailer, pickup, UTE, or UTV and you want sealed round side markers in amber/red pairs.
It may not be the best match if: - your mounting holes are already drilled to a different grommet/cutout size, because the kit calls for a specific drill range - you need a different style form factor (this is a 2-inch round flush mount design) - you’re not operating on a DC 12V system, since the stated input is 12V
Practical tips for getting it to fit right
Before you install, do a quick dry-fit and measure the mounting location. The light itself has an outer diameter of 2.5 in., but the real “make or break” is the grommet hole size: drilling about 2.25"–2.3" is what Partsam says will let the grommet fit for installation.
For a micro “real world” example: if you’re replacing older side markers on a trailer curb rail, mark your hole locations, drill to the grommet spec, and then route your wiring so the pigtails have slack for service. With black/red polarity, it’s easier to wire once and label your harness if you’re doing more than one location.
Mini FAQ
Are these lights sealed for weather?
Yes—Partsam describes the housing and lens unit as sonically sealed and waterproof, with the lens unit described as submersible.
Can these be used as clearance lights or side marker lights?
On paper, the round trailer light serves as either a side marker light or a clearance light, depending on how you mount it.
What wiring do they use?
They use a 2-wire connection: black is negative and red is positive.
What hole size do I need to drill?
Partsam states you need to drill about 2.25"–2.3" to put the included grommet in so it fits for installation.
Final verdict
Should you buy it? Grab this Partsam 10-pack if you’re specifically looking for DOT Approved, sealed 2-inch round LED amber/red side/clearance marker lights for a DC 12V vehicle and you’re okay doing (or already have) the correct grommet hole size. It’s the kind of kit that makes replacement work easier because you get amber and red quantity together, plus the grommets and pigtails.
Skip it if your mounting surface already has cutouts that don’t match the recommended grommet drill range, or if your vehicle isn’t DC 12V. In those cases, you’ll likely spend more time forcing fitment than actually getting the job done.