CZC AUTO 12V Submersible LED Trailer Lights & Wiring Kit — 25ft Harness, DOT-Compliant, Aluminum Bracket

These are CZC AUTO's 12V submersible LED trailer tail lights and a complete wiring kit designed for continuous underwater use and DOT-compliant road visibility.

Built for trailers that see wet, salty, or submerged conditions, this set combines fully sealed LED light housings with a 25-foot wiring harness and a sturdy aluminum license plate bracket. Every component is inspected before shipping, and the assembly uses marine-grade sealing methods so the lights keep functioning when exposed to moisture. They meet DOT/FMVS S108 standards for signaling and are suitable for trailers up to 80 inches wide.

How will these lights hold up when my trailer is submerged?

The lights are manufactured with sonic-welded seams and marine-grade adhesive to close off every entry point where water could enter. The sealed construction and corrosion-resistant internals allow the LEDs to operate while underwater without shorting.

• Sonic welding and adhesive sealing at lens edges and wire inlets
• All LED diodes—no incandescent bulbs to fail from moisture
• Corrosion-resistant materials designed for marine environments

What does the wiring kit include and is installation straightforward?

The kit includes two combination stop/tail/turn LED lights, two amber marker LEDs, and a 25-foot, 18-gauge pure copper wiring harness. The harness length suits most trailer configurations and the heavier copper wire ensures reliable current flow for submerged applications.

• 25-foot 18-gauge 100% copper wiring harness for long runs
• Pre-tested, photometrically inspected lights for consistent output
• Aluminum license plate bracket—sturdier than typical plastic mounts

Are these lights road-legal and visible enough for towing at night?

Yes. The LED optics provide high visibility and the units are tested to comply with DOT FMVSS108 requirements for trailer lighting. LEDs maintain brightness longer than filament bulbs, improving night and low-visibility signaling.

• DOT/FM VSS108-compliant photometric testing before shipment
• High-visibility LED diodes for clearer stop, tail, and turn signals
• Durable lens and housing to resist cracking and fogging

What mounting or compatibility limits should I know about?

The lights are sized for trailers with a maximum width of 80 inches and suit common towing applications such as boat trailers, utility trailers, and snowmobile carriers. The aluminum license plate bracket reduces flex and fatigue compared with plastic alternatives.

• Recommended for trailers under 80 inches wide
• Works well for boat, utility, snowmobile, and small equipment trailers
• Includes aluminum bracket to prevent bending and extend service life

Who is this for? These CZC AUTO submersible LED lights are aimed at boat owners, commercial users, and recreational trailer owners who need dependable, waterproof signaling and marker lights. If your trailer regularly encounters launch ramps, wet roads, or splash-prone conditions and you want a DOT-compliant, long-lasting LED lighting solution with a full wiring harness, this kit suits those needs.