ONLINE LED STORE 4" Red Round LED Trailer Tail Lights — 2pc DOT/SAE, IP67 Waterproof, Plug-and-Play

The TRUE MODS 2-piece 4" red round LED trailer tail lights are a DOT/SAE-compliant, submersible plug-and-play upgrade that replaces standard 4-1/2" cutout round lights for trailers, semis, RVs and work trucks.

These TRUE MODS lights are designed to swap into the common 4-1/2" mounting hole and bring brighter, longer-lasting illumination to the rear of heavy vehicles. Each lamp houses multiple high-output LEDs behind a diffused polycarbonate lens, comes with a grommet and 12" pigtail with a 90° connector, and meets IP67 waterproofing for reliable all-weather performance. The set includes amber/red multi-intensity units for parking/turn/stop use and a single-intensity white reverse option, letting you tailor visibility where you need it most.

How do these lights improve visibility compared with standard incandescent bulbs?

LEDs emit a cleaner, more consistent light than incandescent filaments, so brake, turn and parking signals are easier for following drivers to see. The diffused polycarbonate lens ensures the color reads true while spreading the beam to reduce hotspots.

• 10 high-efficiency LEDs per lens for brighter output and faster response.
• Diffused colored lens for true-to-color signaling and reduced glare.
• Safer night and low-visibility performance without increased power draw.

Are these TRUE MODS lights simple to install on trailers or semis?

Yes — they are intended to be a straightforward retrofit for the common 4-1/2" cutout pattern and include the parts needed for quick installation. The integrated grommet and 12" lead with a 90° connector let you mount in tight spaces without additional modification.

• Fits standard 4-1/2" cutouts used on many trailers and trucks.
• Includes rubber grommet for secure, wobble-free mounting.
• 12" pigtail and space-saving 90° connector for neat wiring runs.

Will these lights hold up to harsh weather and road conditions?

They are built to withstand wet and dirty conditions commonly encountered by trailers and work trucks. The sonically sealed housing and IP67 rating mean the units resist water ingress and dust, extending service life in rough environments.

• Sonic-sealed construction prevents moisture entry and corrosion.
• IP67 submersible rating protects electronics during heavy rain or spray.
• Durable polycarbonate lens resists impact and UV discoloration.

What signaling functions are supported and how are intensities handled?

The set covers required rear signaling roles: parking/running, turn/stop and reverse. Amber and red lenses provide dual-intensity outputs for parking and turn/brake functions, while the white reverse lamp operates at a single bright intensity for clear backing illumination.

• Amber and red LEDs: two intensity levels for parking and turn/brake signals.
• White LEDs: single, high-intensity reverse light for better rearward visibility.
• Meets SAE & DOT FMVSS-108 sizing and signaling standards for legal compliance.

Who is this for? Drivers and fleet managers who want a durable, brighter upgrade for trailer, semi and RV rear lighting will find this TRUE MODS two-piece set a practical solution. It fits vehicles with the common 4-1/2" cutout, is ideal for replacing worn incandescent lamps, and appeals to anyone who needs weatherproof, low-maintenance lighting that improves visibility and reduces downtime for replacements.