Jamarco 4" Round LED Trailer Tail Light Kit, 24-LED Stop/Tail/Turn, IP67 Waterproof, 25ft Harness

Jamarco's 4" round LED trailer tail light kit is a complete, weatherproof lighting package that delivers stop, turn and running lights plus marker lights and a 25-foot harness for fast installation.

This kit gathers everything needed to upgrade or replace trailer lighting: two 4-inch round 24-LED stop/tail/turn lamps, six mini side marker/clearance LEDs, a 13.8-inch 15-LED third-brake identification bar, a 25-foot wiring harness with a 4-pin flat connector, and reflective stickers. All fixtures are IP67-rated for resistance to dust and water, and use simple three-conductor wiring so you can retrofit most 12V trailers, campers, trucks and utility vehicles.

How do these lights handle wet and dirty conditions?

Each lamp in the set is built to withstand exposure to rain, mud and road debris with an IP67 ingress rating. Sealed housings and corrosion-resistant contacts minimize water intrusion and electrical failure, making them suitable for on- and off-road use.

• IP67 waterproof rating for dust and short-term immersion
• Corrosion-resistant connectors and sealed lens construction
• Durable red polycarbonate lenses that resist cracking
• Rubber grommet mounts that keep the fixture snug and sealed

What wiring and mounting steps are required?

Installation follows a straightforward three-conductor scheme: white ground, black for low-brightness tail/running, and red for high-brightness stop/turn/brake. The kit includes a 25-foot harness with a standard 4-pin flat plug so you can route power back to the vehicle quickly; the round lights use rubber grommet mounts and need a roughly 4.5" hole for a flush fit.

• 25-foot wiring harness with 4-pin flat connector included
• Color coding: white = ground, black = tail, red = stop/turn
• Round lights require ~4.5" cutout for flush installation
• Surface-mount third brake bar and mini marker lights for easy placement

What components come in the kit and what do they do?

The set supplies two multi-function 4" round LEDs for rear signaling, six mini marker/clearance LEDs for side visibility, a 13.8" LED bar that serves as a third-brake identifier, reflective stickers, and the long harness to connect everything to a vehicle or tow rig. Each lighting piece supports distinct roles to meet legal visibility and safety expectations.

• Two 4" round, 24-LED stop/tail/turn lamps (multi-function)
• Six mini LED marker lights (4 red, 2 amber for clearance/side marking)
• 13.8" 15-LED third-brake identification light bar
• 25ft 4-pin wiring harness plus four reflective stickers for added visibility

Will these lights fit my trailer and vehicle electrical system?

They are designed for standard 12V DC trailer electrical systems and are universal across most trailers, campers, pickup adapters and utility vehicles. The included harness and standard 4-pin flat plug make compatibility high, though some rigs may need adapter plugs or a short harness splice for older or custom wiring layouts.

• Works with 12V DC systems common on trailers and campers
• Standard 4-pin flat connector for broad compatibility
• Simple color-coded wiring reduces guesswork during hookup
• Small installation adjustments (adapters or splices) handle non-standard setups

Who is this for: This lighting kit is aimed at trailer owners, landscapers, farmers, RV enthusiasts and fleet operators who want a reliable, weatherproof replacement or upgrade for rear and marker lights. It suits do-it-yourself installers and professionals seeking a complete, plug-and-play solution that improves nighttime and low-visibility signaling without extensive rewiring.