Nilight 16" LED Trailer ID Marker Light Bar - Red 2-Pack, Dual-Output Waterproof 12V

Nilight's 16" red LED trailer ID marker light bar (2-pack) is a low-profile, multi-function lighting solution for trailers and heavy-duty vehicles that combines bright LEDs, weatherproof construction, and simple wiring.

These slim 16-inch light bars are built for visibility and durability on 12V systems. Each lamp contains multiple high-output LEDs that produce distinct low- and high-brightness modes so the same unit serves as a tail/parking light and a brake/turn signal marker. The assembly is sealed against the elements with a sonically welded polycarbonate lens and reinforced back lead, and includes mounting hardware for straightforward installation.

How bright and versatile are these light bars for everyday trailer use?

Each Nilight light houses 11 LEDs with two intensity settings, giving clear illumination for both steady running lights and brighter brake/turn signaling. The dual-output design reduces the need for separate fixtures while meeting standard visibility needs on trailers and large vehicles.

• 11 LEDs per lamp with high and low brightness outputs
• Functions as parking, tail, brake, and turn signal lights
• Red lens optimized for rear marker visibility

Will these lights survive rain, road grime, and regular wear?

The lens is sonically welded to the housing and the rear wire lead is glued in place to minimize water intrusion. This construction makes the bar highly resistant to moisture and everyday road exposure, helping maintain reliable performance in wet conditions.

• Polycarbonate front lens resists impact and UV fading
• Sealed housing and glued rear lead for waterproof protection
• Durable build suitable for heavy-duty road use

How easy is installation and wiring on my trailer?

Wiring follows a simple three-conductor scheme: white = ground, black = low brightness/tail, red = high brightness/brake. The light can be flush-mounted through a center hole or fastened with the included screws and washers; brackets are an option to avoid drilling for the rear lead.

• Three-wire hookup (white ground, black tail, red brake)
• Flush-mount with center hole or use washers/brackets to protect back lead
• Includes two light bars and two hardware packs for installation

Which vehicles and trailer types are these lights compatible with?

Designed for 12V electrical systems, the Nilight bars work well on a wide range of commercial and recreational trailers as well as trucks. Their low-profile form and universal mounting options make them suitable for new builds and replacements alike.

• Compatible with cargo, boat, travel, horse, and RV trailers
• Also fits semi trailers, heavy-duty trucks, and camper work vehicles
• Two-pack covers both sides or provides a spare unit

Who is this for: Vehicle owners, fleet managers, and DIY trailer builders who need a reliable, compact rear marker light with multi-function capability. Choose the Nilight 16" LED LED marker bar when you want a weather-sealed, easy-to-wire lighting solution that reduces component count while improving rear visibility on any 12V trailer or truck application.