4 in Round LED Trailer Tail Lights Kit - 2 Red + 2 White Backup

In this review the kit of two 4 in round red LED stop/turn/tail lights plus two 4 in round white reverse lights is evaluated for trailer and truck owners who need a compact, multi function lighting solution. The single biggest reason to consider this set is the bright 24 LED arrays that deliver clear visibility while drawing less current than incandescent bulbs. The review focuses on fit, installation, weather resistance and real world durability to help buyers decide if these lights suit their vehicle or trailer needs.

Key Features

• Multi function design: Red units serve as stop, turn and tail lights while white units act as backup lights, reducing the need for separate fixtures.
• High LED count: Each light uses 24 LED chips for strong brightness and lower current draw compared with incandescent bulbs.
• Complete installation kit: The set includes round rubber grommets and 3-prong wire pigtails so installers have the basic parts needed for a flush mount fit.
• Flush mount size: The lights accept a 4 in inner diameter with a 5.3 in grommet ring and require a roughly 4.6 in hole, making them suitable for many trailers and trucks.
• Weather resistant: Rated IP65 for waterproof protection against spray and dust, suitable for exterior use when not submerged.
• 12V operation and simple wiring: Designed for 12 V DC systems with white as ground, red for high brightness and black for low brightness to match standard trailer wiring.

Who It's For

This kit is best for owners of utility trailers, enclosed trailers, boat trailers, pickup trucks, RVs and light commercial vehicles who want compact LED tail and backup lighting with an included grommet and pigtail for faster installation. It is also a good option for parade floats and horse trailers where a low-profile, flush mount light is preferred.

Those who should look elsewhere include buyers who need fully submersible lights or a slightly different mounting footprint; the lights are IP65 rated but not designed for underwater use. If a vehicle requires a nonstandard wiring connector or exact OEM-size fit that is smaller than the listed hole size, confirm measurements before purchase.

Pros & Cons

Pros

• Bright 24 LED array provides clear illumination while using less current than incandescent bulbs.
• Includes rubber grommets and 3-prong pigtails for a more complete installation kit out of the box.
• Flush mount design keeps a low profile and works on many trailer and truck applications.

Cons

• Fit is mixed for some users - installation requires drilling a ~4.6 in hole which may not match every existing opening.
• Build quality received mixed feedback from customers, so buyers should inspect connectors and seals on receipt.

Specifications

Our Verdict

For trailer and light truck owners who need a compact, brighter-than-incandescent set of tail and backup lights with included grommets and pigtails, this 4 in kit offers good value and straightforward installation. The lights are bright and energy efficient, and the IP65 rating makes them appropriate for most exterior uses; check hole size and inspect build quality on arrival if a perfect OEM fit and long-term ruggedness are top priorities.

Frequently Asked Questions

Are these lights waterproof?
They are IP65 rated for protection against spray and dust but are not designed to be used under water.

What wiring colors do these lights use?
White is ground, red is high brightness and black is low brightness according to the manufacturer.

What hole size do I need to install them?
The grommet ring is about 5.3 in with a 4 in inner diameter; plan to drill about a 4.6 in hole for installation.