Nilight Steel Trailer Light Box Kit — Black Powder-Coated Housing with SMD LED Oval Tail, Round Marker & License Lamp

Nilight Steel Trailer Light Boxes Kit provides a ready-to-install steel housing with bright SMD LED oval tail light, round side marker, and 3-LED license plate lamp for durable trailer rear lighting.

If you need a complete, weather-resistant light box assembly to upgrade or replace trailer rear lighting, this Nilight kit supplies a welded-or-bolted steel box with pre-cut openings and integrated LED fixtures. Built from heavy-duty powder-coated steel and fitted with high-output SMD LEDs, the assembly is designed to handle stop/turn, tail/marker, and reverse/license functions while simplifying wiring and mounting.

How does the kit improve visibility on the road?

The Nilight kit uses bright SMD LEDs tuned for distinct functions: high-brightness red for brake/turn, low-brightness red for running/tail, and white for reverse and license illumination. LEDs consume less power, reach full brightness instantly, and remain visible in poor weather, helping other drivers see your trailer sooner.

• High-output SMD LEDs for clear stop/turn signals
• Separate brightness levels for tail vs. brake functions
• Dedicated white LEDs for reverse and license plate lighting
• Red powder-coat steel box protects lights from impacts and corrosion

What are the installation and wiring steps?

Each light is pre-mounted in the steel housing so installation focuses on mounting the box and connecting pigtail wires to your trailer harness. You can weld the box directly to the frame or secure it with bolts; wiring follows common trailer color codes included in the kit description for each lamp function.

• Weld or bolt the pre-cut box to rear, side, top, or bottom frame
• Hardwire pigtail wires: follow color coding for oval, round, and plate lights
• Ground and positive wires clearly identified for each lamp type
• Removal tip: press oval light from the outside, push round light from inside

What makes this steel light box durable for outdoor use?

The housing is heavy-gauge steel finished with a black powder coat to resist rust, chipping, and corrosion. Pre-cut mounting holes and sealed LED sockets reduce water intrusion while the sturdy construction protects LEDs from road debris and minor impacts.

• Thick steel body for impact resistance
• Black powder-coated finish for corrosion protection
• Pre-cut openings that align with standard 6" oval and 2" round lamps
• Silicone seals and secure mounts to minimize moisture ingress

Who is this for: Trailer owners, fabricators, and fleet maintainers who want a turnkey, rugged rear-light solution that simplifies wiring and mounting. The Nilight Steel Trailer Light Boxes Kit is well suited to new trailer builds, retrofits on older trailers that need protected lighting, and commercial applications where dependable LED signal and marker illumination are required. If you prefer a bolt-on option, regular servicing access, or a weld-ready assembly for a permanent fit, this kit provides clear wiring guidance and removal tips so maintenance is straightforward.