4in Round Red/White Dual Trailer Tail Lights - Flush Mount

In this review of the 4in round red/white dual trailer tail lights the bottom line is simple: these lights are for vehicle owners who need a compact, bright stop/turn tail lamp that also provides a white reverse function without adding a separate fixture. The set of four arrives with rubber grommets and three prong wire pigtails for straightforward installation, and the standout feature is the dual-color 19 LED array that switches to white when reverse is engaged, making it a useful combo for trailers and trucks.

Key Features

• Dual-color 19 LED array: The same LEDs produce red for stop/turn and white for reverse, simplifying wiring and conserving mounting space.
• Flush mount with rubber grommet: The included grommets create a clean, sealed installation and help reduce vibration damage.
• Three-prong wire pigtails plus auxiliary plug: Standard wiring plus an extra blue male bullet plug for the reverse function makes hookup compatible with most trailers.
• IP67 waterproof rating: Sonically sealed and submersible construction protects the LEDs in wet or harsh weather conditions.
• Compact dimensions: At about 5.1in diameter and 1.1in height overall, these lights fit tight mounting locations when a 4.5in hole is drilled.

Who It's For

This product is best for owners of trailers, utility vehicles, pickup trucks, flatbeds, and small commercial vehicles that need a compact combined stop/turn and reverse lamp. It is particularly useful when space is limited and when adding a separate reverse lamp would be impractical.

Those who should look elsewhere include buyers who require longer-term heavy-duty endurance under extreme vibration or continuous high-current duty without occasional replacement; some user reports suggest durability concerns, so heavy off-road use or applications demanding decade-long life may warrant a more heavy-duty industrial light.

Pros & Cons

Pros

• Bright and visible in daylight due to concentrated 19 LED design.
• Combination red and white function removes need for a separate backup lamp.
• Easy installation with three-prong pigtails and a plug-in auxiliary reverse wire.
• IP67 waterproof construction for rainy or wet conditions.

Cons

• Some customers reported durability issues with lights failing earlier than expected.
• Flush mount requires drilling a roughly 4.5in hole and may not suit every mounting surface.

Specifications

Our Verdict

These 4in round dual red/white tail lights offer a practical, space-saving solution for trailers and trucks that need a combined stop/turn and reverse lamp. They deliver bright, daylight-visible output and straightforward wiring at an attractive value, though buyers who need absolute long-term durability under extreme conditions should consider heavier-duty alternatives.

Frequently Asked Questions

Do these lights require a separate reverse circuit?
They include an extra blue auxiliary wire with a male bullet plug to power the white reverse LEDs, so a separate reverse circuit is used and is expected.

What is the wiring color code?
White is ground, red is stop/turn brake, black is tail running, and the blue auxiliary plug is for reverse.

Are these waterproof for trailer use?
Yes, they are sonically sealed and rated IP67, suitable for submersion and wet weather.