Nilight 4-inch Round Trailer Tail Light — Red LED, Chrome Bezel, IP65 Waterproof

Nilight's 4-inch round red LED trailer tail light delivers bright brake, turn and tail illumination in a compact, weather-resistant chrome bezel housing.

This low-profile lamp is designed for trailers, trucks and other 12V vehicles that need reliable rear signaling. It uses high-density 2835 SMD LEDs and an impact-resistant lens for improved visibility and durability. The chrome-trimmed bezel gives a finished look while protecting the lamp against road vibration and light impacts. Installation is straightforward for surface-mount applications and the unit is sealed to withstand wet conditions.

How bright and visible is this tail light?

The light uses 24 pieces of 2835 SMD LEDs arranged to produce a clear, high-intensity red output that is easy for following drivers to see. Brightness is optimized for brake, turn and tail functions without excessive glare. The LED array also offers a consistent illumination pattern across the lens.

• 24 x 2835 SMD LEDs for strong red output
• Even light distribution across the 4" lens
• Designed for stop, tail and turn signaling

Will this light survive rough roads and wet weather?

The housing combines an impact-resistant AS lens with an ABS bottom shell to protect internal components from shocks and debris. A robust seal and IP65 rating keep water and dust out so the light continues working in rain and off-road conditions. The chrome bezel is stainless-steel backed to resist corrosion from road salt and moisture.

• IP65-rated waterproof design for weather resistance
• AS lens and ABS shell resist impacts and vibration
• Chrome bezel adds corrosion protection and rigidity

How simple is installation and what are the mounting requirements?

Installation is surface-mount and comes with three screws and nuts for a straightforward fit. You’ll need a 4.4-inch diameter hole with about 2.17 inches of depth for correct placement. Wiring is standard 12V and connects to brake, turn and tail circuits; professional wiring is recommended if you’re unsure.

• Surface-mount hole: 4.4" diameter, 2.17" depth
• Includes three screws and nuts for fastening
• Compatible with standard 12V vehicle wiring

Which vehicles and functions is this light suited for?

This 4-inch light is sized and rated for a wide range of commercial and recreational vehicles. It performs as a brake light, turn signal and tail light on trailers, trucks, buses and vans. The compact round shape fits many aftermarket mounting locations and replacement applications.

• Works on trailers, semi-trailers, pickup trucks, buses and vans
• Multi-function for brake, turn and tail signaling
• Ideal for replacement or custom mounting locations

Who is this for? This Nilight 4" round LED tail light is intended for vehicle owners, fleet managers and DIY trailer builders who need a durable, bright rear signal lamp that blends easy installation with weatherproof performance. It’s a practical choice when you want improved visibility, corrosion resistance and a clean chrome-trimmed appearance without changing your vehicle’s electrical system.