NEW SUN 80" 3-to-2 Way Tail Light Converter Cable — 80in 100% Copper Wire Harness, Weatherproof

NEW SUN's 80" 3-to-2 way tail light converter is a heavy-duty, weather-resistant copper wire harness that adapts a 3/5-way trailer plug to a 2-way/4-pin flat lighting connection for reliable brake, turn and tail signaling.

When towing, mismatched plugs between trailer and tow vehicle are a common annoyance. This NEW SUN harness solves that by converting wiring quickly while protecting conductors from moisture and corrosion. Built with full-size copper conductors and a sealed junction, the cable gives you a long reach and dependable electrical performance for trailers, RVs, boats, and utility carts.

How does this converter make mismatched plugs work together?

The converter routes the trailer's brake, turn and tail circuits into a 4-pin flat output so older or differently wired tow vehicles can power trailer lights correctly. Color-coded leads reduce guesswork and speed up connections, and the inline design slips into existing harnesses without major rewiring.

• Converts multi-pin trailer wiring to standard 4-pin flat output
• Color-coded wires simplify matching functions like brake and turn
• Inline installation fits between vehicle and trailer harnesses
• 80-inch length provides extra reach for different mounting positions

Will the 100% copper conductors improve signal reliability?

Copper offers lower electrical resistance than many alloy alternatives, which helps preserve signal strength across the full length of the harness. That means brakes, turn signals and tail lights get clearer, more consistent power under load and in varying temperatures.

• Pure copper conductors for efficient current transfer
• Reduced voltage drop for consistent lighting operation
• Robust wire gauge suited for trailer lighting circuits

Is the harness suitable for outdoor and marine environments?

The converter includes a weatherproof seal around the junction points to resist water intrusion and corrosion, extending service life in wet or salty conditions. Durable insulation and a rugged outer jacket help the cable withstand abrasion, road debris, and seasonal exposure.

• Sealed connector areas protect against moisture and salt spray
• Corrosion-resistant contacts maintain conductivity over time
• Heavy jacketed cable resists cuts and abrasion from trailers

How easy is the NEW SUN harness to install and use?

Installation is straightforward for anyone familiar with trailer wiring: match color-coded leads, secure connections, and route the 80" cable to avoid pinch points. No specialized tools are required for basic hookup, making it a practical field repair or permanent retrofit.

• Color-coded wiring speeds correct hook-up
• Inline connection works with existing plugs and sockets
• Long reach reduces need for extension cords or rerouting
• Compatible with trailers, boats, RVs, and utility equipment

Who is this for: The NEW SUN 80" 3-to-2 way tail light converter is ideal for vehicle owners, fleet managers and DIY tow enthusiasts who need a rugged, long-reach solution to match different trailer plugs. Choose this harness if you want full-copper conductors, a weatherproof junction, and an easy inline installation to keep lights functioning safely during towing.