4 Inch Round 16 LED Truck Tail Light | 12V-24V Stop Brake Signal

4 Inch Round 16 LED Truck Tail Light – Stop, Brake, Turn Signal & Reverse

Upgrade your truck, trailer, or semi with this heavy-duty 4-inch round 16 LED tail light. Designed for wide compatibility and built to last, this compact yet ultra-bright lamp handles stop, brake, turn signal, and reverse functions all in one unit. Whether you're hauling cargo on the highway or working on a job site, staying visible and road-legal has never been easier.

Made in Mainland China.

Key Features

• Super Bright LEDs: 16 high-quality LEDs per light deliver exceptional brightness and visibility in all weather conditions.
• Multi-Function: Combines Stop, Tail, Turn Signal, and Reverse light functions in a single compact housing.
• Wide Voltage Range: Compatible with both 12V and 24V electrical systems — perfect for light-duty trucks and heavy commercial vehicles alike.
• Durable Construction: Built with ABS plastic, polycarbonate lens, and stainless steel hardware for long-lasting, weather-resistant performance.
• Universal Fit: Designed for trucks, semi-trucks, trailers, tractors, dump trucks, buses, boats, and other specialty vehicles.
• Easy Installation: Simple 2-wire connection makes replacement or new installation straightforward with no special tools required.
• Compact & Versatile: Mount front or rear, left or right — flexible placement for any setup.

Specifications

Compatible Vehicles

This LED tail light is suitable for a wide range of vehicles and applications, including:

• General Trucks & Semi-Trucks
• Trailers & Semi-Trailers
• Tractors & Farm Equipment
• Dump Trucks & Utility Vehicles
• Buses & Commercial Vehicles
• Boats & Marine Vessels
• Special Purpose & Off-Road Vehicles

What's in the Box

• 1 × 4-Inch 16 LED Round Tail Light

Safety & Compliance

Proper vehicle lighting is critical for road safety. For more information on federal motor vehicle lighting standards and requirements, visit the National Highway Traffic Safety Administration (NHTSA). You can also review trailer and truck lighting safety guidelines at the Federal Motor Carrier Safety Administration (FMCSA).

Learn more: Emergency vehicle lighting

Frequently Asked Questions

Q: Is this 4-inch LED tail light compatible with both 12V and 24V truck systems?

A: Yes! This LED truck tail light supports a wide voltage range of 12V to 24V, making it compatible with both light-duty and heavy-duty commercial vehicle electrical systems, including semi-trucks, trailers, tractors, and buses.

Q: How many functions does this round LED tail light perform?

A: This single unit handles four key lighting functions: Stop, Brake, Turn Signal (amber), Tail, and Reverse light — eliminating the need for multiple separate lamps and simplifying your wiring setup.

Q: Is the installation of this truck tail light easy? What wiring is required?

A: Installation is straightforward. The light uses a simple 2-wire connection, so no complex wiring harness is needed. It can be mounted at the front or rear, and on the left or right side of your vehicle for maximum flexibility.

Q: What materials are used in this LED tail light, and is it weatherproof?

A: The housing is made from durable ABS plastic and polycarbonate (PC) lens material, with stainless steel hardware. This combination provides excellent resistance to vibration, moisture, and general wear — ideal for trucks and trailers operating in demanding outdoor conditions.