Partsam 4" Round LED Trailer Tail Light Kit, 4-Pack Red — 12V Sealed Flush-Mount, 12-LED Waterproof

Partsam 4" round LED trailer tail lights are a sealed, 12V-ready four-piece kit that combines brake, turn and running light functions in a waterproof, flush-mount design.

Designed for trailers, trucks, RVs and marine applications, this kit includes four red LED lights with integrated grommets and pigtail wiring for fast replacement or new installs. Each lamp uses 12 high-intensity diodes in a recessed housing rated to resist water and road debris, offering brighter, faster illumination than traditional bulbs while drawing less current.

How do these lights fit my trailer or vehicle?

The housings are recessed for a flush mount and come with a flexible grommet ring to seal the opening. Outer bezel diameter is approximately 5 inches with a 4-inch visible lamp face and about 1 3/16 inches in thickness, so they suit common round mounting cutouts used on trailers and utility vehicles.

• Approx. 5" outer diameter; 4" inner visible light face
• Recessed mount with grommet included for a tight seal
• Accepts a standard 3-prong plug for many trailer wiring harnesses
• Works with 12V DC systems and 8–16V compatible devices

What wiring and electrical features should I expect?

Each lamp ships with pigtail leads and color-coded wires for straightforward connection: white for ground, red for high-brightness (stop/turn), and black for low-brightness running lights. The LEDs switch on faster than incandescent bulbs and use less power, improving visibility and reducing load on your trailer circuit.

• Three-wire hookup: white (ground), red (brake/turn), black (tail/running)
• 12 LED diodes per lamp for clear signaling
• Low current draw, reduced heat build-up
• Compatible with most 3-prong trailer plugs and 12V systems

Are these lights durable and weatherproof for outdoor use?

Yes—each unit is sealed to prevent water intrusion and built to resist shock and impact from road vibration. The IP65-style protection repels dust, rain and splashes, making the lights suitable for trailers, boats and vehicles exposed to harsh conditions.

• Water-tight sealed LED housing to protect internals
• Impact-resistant construction reduces shock damage
• Red lens with corrosion-resistant materials for marine use
• Reliable performance in rain, snow, mud and dusty environments

Who is this for: This 4-piece Partsam LED tail light kit is aimed at trailer owners, fleet operators, RV and boat owners, and anyone needing a rugged, plug-and-play replacement for incandescent round tail lights. It suits DIY installers and professionals who want brighter, more energy-efficient signaling lights that withstand outdoor elements without complicated mounting hardware.