XtraGlow Submersible LED Trailer Light Kit — American Flag Rectangular Tail Lights, 10" 3rd Brake Bar, Waterproof Aluminum Alloy

XtraGlow's submersible LED trailer light kit is a complete 12V lighting solution with American-flag rectangular tail lights, a 10" third-brake LED bar, side markers, wiring harness, and mounting hardware for trailers up to 80" wide. This kit bundles everything needed to upgrade a boat, utility, or cargo trailer: two waterproof rectangular tail lights with built-in license plate illumination, a 10-inch high-visibility 3rd brake light bar, four side marker lights (two red, two amber), a 25-foot 4-flat wiring harness, license plate bracket, and all mounting hardware. Each component is fully sealed for submersion and constructed with aluminum-alloy bases for corrosion resistance, making the kit suitable for wet environments like boat ramps and snowy roads.

What lighting functions do these tail lights perform?

Each rectangular tail light and the 10" brake bar deliver multiple roles so a single installation covers common trailer lighting requirements. When wired correctly the system supports stop, turn, tail/running lights, side markers, rear reflectors and an illuminated license plate.

• Stop/Brake: high-brightness LED arrays on both the tail lights and the 10" bar.
• Turn signals: amber-capable sequencing via the bar and rectangular housings.
• Tail/Running: low-brightness mode for continuous visibility at night.
• Side marker and reflector: four mini oval markers provide side clearance and passive reflectivity.
• License plate illumination: integrated on the driver-side rectangular light.

How durable and weatherproof is the kit for marine or snowy use?

The lights are fully sealed and designed to be submersible, with aluminum-alloy bases to resist rust and corrosion. That means repeated exposure to water—launching a boat or towing through slush—won't damage the internal LED circuitry when mounted and sealed correctly.

• Fully sealed housings prevent water ingress and protect circuit boards.
• Aluminum-alloy bases reduce corrosion on trailers and boat bunks.
• LEDs resist shock and vibration better than incandescent lamps.
• Designed to perform reliably in rain, snow, and brief immersion.

What wiring connections and tips should I know before installing?

The kit uses a 25-foot wiring harness with a 4-flat plug and color-coded leads for each component. Follow the supplied wire-color mapping to match ground, low-brightness running, and high-brightness brake/turn circuits for trouble-free operation.

• Rectangular tail lights: white = ground, brown = low/running, yellow/green = high/brake.
• 10" brake bar: white = ground, black = low/running, red = high/brake/turn.
• Mini side markers: white = ground, red = positive feed.
• Use the included 4-flat plug to connect to standard trailer wiring on most tow vehicles.

How bright are the LEDs and what visibility can I expect?

The kit uses multiple LEDs per fixture for clear indication at distance and improved peripheral visibility. Both the rectangular tail assemblies and the 10" bar combine high- and low-brightness modes so other drivers can quickly distinguish braking from running lights.

• Rectangular tail lights feature 31 diodes (22 red + 9 white) for stop, tail, marker, and license illumination.
• The 10" bar contains 14 high-efficiency 2835 LEDs for a strong third-brake signal.
• Mini markers increase side visibility with red and amber lenses.
• LED arrays offer faster illumination than incandescent bulbs for clearer signaling.

Who is this for? If you tow a boat, snowmobile trailer, utility trailer or flatbed and need a rugged, all-in-one lighting upgrade, this XtraGlow kit is built for you. It’s ideal for owners who launch vessels, tow in wet climates, or simply want a bright, corrosion-resistant lighting package with an attractive American-flag motif. Installers with basic wiring knowledge will appreciate the color-coded leads and included mounting hardware, while anyone who needs durable, submersible lights will gain long-term reliability without frequent bulb replacement.

FAQ

Q: Are these lights fully waterproof for boat trailers?

A: Yes. The housings are fully sealed and submersible, designed to withstand brief immersion and wet launch conditions.

Q: Will the wiring harness fit my tow vehicle?

A: The kit includes a 25ft harness with a standard 4-flat plug compatible with most trailer wiring setups.