Partswcgg 4" Round Dual-Color LED Trailer Tail Lights — Red Stop/Turn + White Reverse, IP67 Waterproof (4-Pack)

Partswcgg 4-inch round dual-color LED tail lights combine red stop/turn illumination with a white reverse beam in a single, waterproof housing.

These compact 4" LED modules deliver both stop/turn and backup functions using the same diode array, packaged with a rubber grommet, three-prong pigtail and an auxiliary reverse wire for straightforward retrofit or new installations. Built to fit a wide range of 8–16V vehicles, they are sonically sealed and rated IP67 to resist water and road grime while maintaining bright, visible signaling.

How do these lights manage two colors from one lamp?

The lamp uses a shared LED cluster that emits red for stop/turn/tail functions and switches to white when the reverse circuit is energized. A dedicated blue auxiliary wire with a bullet connector feeds the reverse function so the white output overrides the red when activated.

• 19 LEDs arranged for dual-color output
• Blue auxiliary wire controls white reverse beam
• Three-prong pigtail separates ground, tail/run, and stop/turn
• White reverse has priority when supplied

What are the installation requirements and wiring details?

Each lens comes with a rubber grommet for a flush-mount fit and a pre-wired three-prong pigtail plus the extra reverse lead. The unit measures about 5.1" diameter overall and requires a roughly 4.5" mounting hole; wire color coding simplifies hookup.

• White = ground, black = tail/run, red = stop/turn/brake
• Blue auxiliary male bullet plug = reverse light feed
• Drill ~4.5" hole; outside diameter ~5.1" and depth ~1.1"
• Flush-mount with included rubber grommet for waterproof seal

How durable and weatherproof are these trailer lights?

Housings are sonically sealed and rated IP67, meaning they withstand immersion and heavy exposure to dust, mud, and salt spray encountered in towing and marine environments. The robust build is intended for frequent outdoor use across seasons without losing visibility.

• IP67-rated waterproofing and submersible sealing
• Sonically sealed assembly to block moisture and road debris
• Corrosion-resistant materials suited for trailers and boats
• Operates on standard 8–16V DC electrical systems

What vehicles and applications are these lights compatible with?

Designed for universal fit across many light-duty and heavy-duty platforms, these lights work with trailers, pickup trucks, commercial vans, and many specialty vehicles that use 4" round signal lamps. They are a practical upgrade for anyone needing combined stop/turn and backup functionality in one compact unit.

• Semi trailers, service trucks, and utility vehicles
• Boat trailers, horse trailers, parade floats, and campers
• Pickup trucks, UTVs, and light commercial vans
• Any 8–16V DC vehicle requiring round combination lights

Who is this for: These Partswcgg dual 4" LED tail lights are suited for fleet managers, trailer owners, RV and boat enthusiasts, and do-it-yourself mechanics who want a compact, sealed, dual-function lighting solution that simplifies wiring and improves visibility. If you need a low-profile lamp that combines brake/turn and reverse signals in one IP67-rated package, these lights provide a durable, easy-to-install option backed by customer support for installation questions and post-sale concerns.