ROULER Magnetic LED Tow Light Kit 12V — ProlinePI, 20 ft 4‑Pin Harness, DOT/SAE Compliant

ROULER ProlinePI is a 12V magnetic LED towing light kit engineered to provide DOT/SAE-compliant brake, tail and turn signals for trailers, RVs, dollies and towed vehicles.

This magnetic tow light kit combines powerful LEDs, a durable scratch-resistant magnetic base and a 20-foot four-pin wiring harness so you can quickly add visible, road-legal lighting to any metal tow vehicle. Built to meet U.S. DOT and SAE standards, the lights are designed for repeated mounting on cars, trucks, boats, dollies, and RVs up to 80 inches wide. The kit ships with clear assembly and operating instructions so you can set up in minutes without tools.

How reliable are these LED tow lights for long-distance towing?

The ROULER ProlinePI LEDs are rated for long life and consistent output, reducing the need for frequent replacements during extended trips. Their solid-state design resists vibration and shock encountered on highways and rough roads.

• Super-bright LEDs with up to 100,000 hours of theoretical life
• DOT/SAE compliant light output suitable for legal towing
• Durable construction resists road vibration and weather exposure
• Scratch-resistant magnetic base for repeated mounting

How easy is installation and removal while on the road?

Installation is designed to be fast and tool-free: position the magnetic bases on clean metal, route the 20-foot harness, and connect the standard 4-pin plugs to your towing vehicle. Removal is just as simple — pull the tabs and stow the kit when not in use.

• 20-foot wire harness gives flexible routing and reach
• Four standard pin connectors for universal compatibility
• Magnetic bases hold firmly yet release quickly when needed
• Clear assembly and operating instructions included

Will these lights work with different tow setups like dollies, boats, or RVs?

The ProlinePI kit is sized and rated for common towing applications up to 80 inches wide, making it a versatile choice across trailers, boats, dollies, and RVs. The magnetic attachment allows temporary use on any clean metal surface without permanent modification.

• Ideal for trailers, trucks, boats, RVs and dolly setups
• Suitable for towing widths up to 80 inches
• Reusable magnetic mounting for temporary or emergency lighting
• 4-pin connector supports most tow vehicle wiring sockets

What maintenance does the kit need to stay road-ready?

Minimal upkeep keeps the lights functioning reliably: keep magnetic bases and vehicle mounting surfaces clean, inspect connectors for corrosion, and verify operation before each trip. The solid-state LEDs reduce replacement frequency compared to incandescent bulbs.

• Wipe magnets and mounting surface of dirt and salt after use
• Check 4-pin connector for secure fit and corrosion
• Test brake, turn and tail functions before towing
• Store kit in a dry location when not in use to prolong lifespan

Who is this for? The ROULER ProlinePI 12V Magnetic LED Tow Light Kit is aimed at occasional and frequent towers who need a reliable, quick-install lighting solution without permanent wiring. It suits RV owners, boat haulers, auto shops, roadside helpers, and anyone who tows cars on dollies and needs DOT/SAE-compliant brake, turn and tail lighting that’s easy to attach and remove.