Partsam 2.5" Round Red LED Side Marker Lights 10-Pack — 13-LED Sealed Waterproof, DOT-Approved for 12V Trailers & Trucks

Partsam 2.5-inch round red LED marker lights are compact, DOT-approved side/clearance lamps fitted with 13 high-output LEDs each, sold in a 10-piece sealed waterproof kit for universal 12V trailer and truck use.

These 2.5" red LED markers from Partsam are designed to replace small incandescent lamps across trailers, trucks, RVs and work vehicles. Each lamp is a sealed unit with a two-prong female connector and a durable housing that resists moisture and vibration. The kit contains ten matching lights, making it convenient to update multiple mounting points with consistent brightness and color for improved visibility on the road.

How bright and durable are these 13-LED marker lights?

Each lamp contains 13 tightly grouped LEDs that deliver a brighter, longer-lasting light source compared with traditional bulbs. The sealed construction protects the LEDs from water, dust and road grime, helping maintain consistent output over time.

• 13 high-output LEDs per 2.5" lamp for strong, even illumination
• Sealed, waterproof housing suitable for exterior use
• Built to resist vibration typical of trailers and heavy trucks

Will these work on my truck, trailer, or RV and how do they mount?

These markers are universal for 12V systems and commonly replace small side or clearance lamps on trucks, travel trailers, utility trailers, dump trailers, tractors, vans and RVs. They accept an industry-standard 2-prong plug and are typically installed using a rubber grommet mount (grommet sold separately) or surface mounting where space allows.

• 12V compatible for most vehicle electrical systems
• Industry-standard two-prong connector — plug fits common wiring harnesses
• Designed for grommet or surface mounting (grommets/fasteners not included)

Are these DOT-approved and legal for road use?

Yes — the kit is DOT-approved for use as side marker or clearance lights when installed in accordance with local vehicle lighting regulations. They offer the correct red color and required visibility for many rear and side mounting positions, but always confirm placement and count with specific regulations for your vehicle class.

• DOT-approved color and performance standards
• Suitable for side marker and clearance light positions when mounted correctly
• Sold in a coordinated 10-piece set for consistent lighting across installations

How easy is the installation and what accessories are needed?

Installation is straightforward for anyone familiar with trailer lighting. The lamps come with a built-in two-prong female plug to mate with industry-standard male connectors; mounting typically requires a 2.5" grommet or a surface fastener depending on the application.

• Built-in two-prong female plug for quick electrical connection
• Grommet mounting is common — grommets and 2-prong plugs sold separately
• Simple swap-in replacement for similarly sized incandescent fixtures

Who is this for? The Partsam 10-pack suits fleet owners, trailer DIYers, RV enthusiasts and truck drivers who want a reliable, uniform upgrade from incandescent markers to efficient LED lighting. It’s ideal when you need multiple matching lamps for air cleaner bars, cab and sleeper kits, bumpers, center panels or side marker runs. If you require sealed, DOT-compliant marker lights that save replacement frequency and increase on-road visibility, this kit is a practical choice.