When equipping a motorhome, side marker lights are essential for visibility, safety, and compliance. The following five products are selected for reliability, variety in styling (bullseye, tiger eye, and double bubble designs), and solid performance on 12V systems. Each item is a DOT-certified or certified-like LED solution suitable for RVs, campers, trailers, and trucks. Review features, mounting options, and durability to choose the best fit for your rig.
| Product | Brand | Type / Design | Key Features |
|---|---|---|---|
| Partsam 14x Trailer RV Marker LED Light | Partsam Store | Oval Bullseye / Double Bubble | 12V, DOT Approved, multi-color (Amber/Red), corner wire exit |
| Partsam 4x Rectangular 4 Inch LED Clearance Lights | Partsam Store | Rectangular, Dual Red/Amber | 6 LEDs per unit, replaceable lens, waterproof, DOT Certified |
| Lumitronics RV Clearance Marker Light | Lumitronics Store | Amber | ABS base, acrylic lens, two-wire system, rugged design |
| NEW SUN 4 Pcs Amber & Red 10 LED Lights | NEW SUN Store | Bullseye / Tiger Eye / Double Bubble | 10 LEDs per light, 100,000+ hour lifespan, easy 3″ mounting |
| Partsam 2Pcs 4 Inch LED Side Marker Lights | Partsam Store | Rectangular, 2×2 | 6 LEDs per light, reflex lens, 2-wire, DOT Approved |
Choosing the right side marker lights involves considering visibility, mounting style, weather resistance, and compliance. The products below span from classic round/bullseye styles to rectangular, offering multiple mounting and wiring options. Each option is designed for 12V systems and is suitable for motorhomes, trailers, and large recreational vehicles.
Partsam 14x Trailer Marker Light Set

Overview: This Partsam marker light set combines amber and red oval oblong lenses suitable for RVs, trailers, campers, and boats. The design supports as a side marker, clearance light, or identification lamp. Wires exit from the lower corner of the light rather than the center, a feature visible in accompanying images. The dual-color configuration enhances visibility from multiple angles, fulfilling common trailer lighting requirements while maintaining a compact footprint.
Key features to note include: universal compatibility with 12V systems, DOT approval status, and a single unit capable of multiple lighting roles. The lens and housing are designed for durability in outdoor conditions, and the 7 amber and 7 red diodes per color provide a bright, even glow. Installation requires attention to the corner wiring orientation when mounting on rounded surfaces.
Partsam Rectangular 4-Inch Clearance Lights

Overview: This kit contains two red and two amber 4-inch LED side marker clearance lights. Each unit houses six LEDs and a replaceable, durable lens. The two-color setup allows for effective signaling as both clearance and marker lights. The unit is weather-sealed and designed for surface mounting, with a simple two-wire design that includes a lead and ground wire for straightforward installation on a wide range of vehicles, including RVs, campers, and trucks.
Lumitronics RV Clearance Marker Light

Overview: The Lumitronics marker light features a rugged ABS base with an acrylic snap-on lens. It emphasizes safety through a molded socket that protects the bulb from road shocks and a two-wire configuration to simplify wiring and eliminate ground loops. Durability is further enhanced by a molded grommet that extends through the skin to protect wiring from moisture and abrasion, making it suitable for long-term exposure to harsh environments around RV travel.
NEW SUN 4 Pcs Amber & Red LED Lights

Overview: This New Sun set includes four lights in amber and red tones with 10 high-intensity LEDs per unit. The design emphasizes maximum illumination for better side visibility and signaling from a distance. Claimed durability includes a lifespan exceeding 100,000 hours, making these a cost-effective long-term option. The lights are mounted on a surface-friendly profile designed to fit standard mounting holes and offer straightforward installation for motorhomes and trailers alike.
Partsam 2-Pack 4-Inch LED Marker Lights

Overview: This two-light set from Partsam provides 4-inch by 2-inch rectangular marker lights with six LEDs per light and a reflex lens built-in. The reflector function doubles as a safety feature without needing a separate reflector. The units are surface-mounted with a white base, and a two-wire design simplifies integration with 12V vehicle electrical systems. DOT approval supports compliance for many vehicle types, including RVs and trailers, with a robust, waterproof construction.
Buying Guide: Key Purchase Considerations
- Light color and signaling roles: Amber typically covers marker and side identification functions, while red is common for rear or combined signaling. Some products offer dual-color capabilities to meet multiple lighting requirements with a single unit.
- Mounting style and compatibility: Rectangular 4-inch and oval/bullseye designs suit different mounting holes and surface profiles. Verify mounting hole spacing (often 3″ for some units) and ensure your vehicle’s mounting surface can accommodate the light’s depth.
- Wiring configuration: Look for two-wire designs (lead and ground) for easier installation. Note whether wires exit from the center or a corner, as this affects mounting orientation and wiring routing on curved surfaces.
- Durability and weatherproofing: Waterproof lenses and sealed housings protect against moisture and road spray. ABS bases and acrylic lenses typically balance rigidity with light transmission quality.
- Durability and lifespan: LEDs offer long lifespans and lower maintenance. A reported 100,000-hour life, as claimed by some brands, indicates robust long-term performance for RVs and campers.
- Compliance and safety: DOT or DOT-like certification helps ensure legality for road use in motorhomes and trailers. If you operate in regions with strict lighting regulations, verify local requirements before purchase.
- Replacement and maintenance: Consider lenses that are replaceable or easily sealed after installation. Reflex lenses can enhance visibility by improving light diffusion and reflectivity.
In selecting the best option, weigh installation complexity, desired visibility, and whether you prefer a uniform look (same design across multiple sides) or a mix of marker styles for aesthetic variety. For frequent travelers and professional fleets, durability, weather resistance, and ease of maintenance are often decisive factors. The listed products provide a range of signals—from single-vision amber markers to multi-color, multi-design sets—that can adapt to diverse motorhome and trailer configurations.