CZC AUTO 12V LED Submersible Rectangular Trailer Light Kit — 2-Pack Waterproof Tail/Stop/Turn Lights with 25 ft Harness

CZC AUTO 12V LED rectangular submersible trailer lights are a complete, low-profile kit that provides tail, stop, turn and license-plate illumination for boat trailers, trucks and marine applications.

This waterproof light set combines bright LEDs, a rugged rectangular housing and a 25 ft 4-pin harness to deliver dependable signaling and running lights where exposure to water, salt and road vibration is expected. Built with higher-gauge copper wiring and stainless steel mounting hardware, the kit is engineered to resist corrosion and keep trailer lighting legal and visible in wet conditions.

How bright and visible are these lights on trailers and boats?

The LEDs are arranged for high output and broad visibility: the left lamp includes extra diodes for a license-plate light while the right lamp provides concentrated signal diodes. Brightness meets DOT-style expectations for roadside and trailering use when mounted at recommended heights.

• Left lamp: 22 LEDs total, including 4 for the license plate.
• Right lamp: 18 LEDs focused on tail/stop/turn functions.
• Low-profile rectangular lens increases visibility from rear and angled views.

Are these lights truly waterproof and submersible?

The lights are designed and tested for submersion; CZC AUTO performed repeated underwater tests showing continued operation after multi-day exposure. Proper wiring connections and insulation are essential to maintain waterproof performance in long-term marine use.

• Tested submerged multiple times for several hours with continued function.
• Improved 18 AWG 100% copper waterproof harness for reliable conductivity.
• Stainless-steel fasteners reduce corrosion risk in saltwater environments.

What comes in the kit and how easy is it to install?

The package includes two combination submersible lights, a license-plate bracket, mounting hardware and a 25-foot 4-pin wiring harness, providing enough length for most trailer installations. Installation is straightforward for anyone comfortable with basic trailer wiring; the durable harness and mounting hardware simplify routing and attachment.

• 2 combination tail/stop/turn/running LED lights sized 8" x 2-3/4" x 3" each.
• 25 ft, 4-pin harness with 18-gauge copper wire for secure electrical connections.
• License plate bracket and stainless-steel mounting screws included.

How durable are these lights for long-term marine and towing use?

The assemblies use corrosion-resistant hardware and a reinforced housing to withstand trailer vibration, splash and salt air. The upgraded thicker wire harness helps reduce voltage drop and resists heat and moisture infiltration compared with thinner wiring.

• Stainless-steel mounting hardware resists rust and loosening.
• 18 AWG 100% copper wire harness improves conductivity and durability.
• Low-profile sealed housing minimizes impact and water entry points.

Who is this for: This CZC AUTO kit suits trailer owners, boaters and commercial users who need reliable, submersible rear lighting that tolerates wet environments and towing stresses. It's aimed at DIY installers and fleet operators seeking a corrosion-resistant, plug-and-play solution for tail, stop, turn and license-plate lighting on trailers, utility trucks and marine towing vehicles.