LED Tail Light Rectangular Combination with Triangle and Smart Resistor LH – LG574

The LG574 left-hand LED tail light is a heavy-duty rectangular combination rear lamp designed for trailers, trucks, tractors, agricultural machinery and plant equipment. Built for professional use, it combines stop light, tail light, indicator, rear fog light, reverse light, reflector and integrated red triangle in one compact road-legal unit.

With a wide 9–33 V DC voltage range, this lamp is suitable for both 12 V and 24 V vehicle systems. It is ECE approved, ECE R10 EMC compliant and tested to CISPR 25 Class 4, making it a reliable choice for modern vehicles with sensitive electronics, GPS, radio, CB and telematics systems.

Built for Modern Trailers, Trucks and Agricultural Vehicles

The LG574 is engineered for fleets and operators who need rear lighting that works reliably in demanding conditions. Whether fitted to a commercial trailer, farm trailer, low-loader, construction trailer or towing vehicle, this LED combination tail light delivers clear visibility, strong signal output and long-term durability.

Inside the lamp are high-intensity CREE XTE LEDs with a service life of up to 50,000 hours. The sealed IP67-rated housing protects against dust, water, winter road spray and wash-down conditions, while the robust construction is vibration-tested to 15 G for reliable use on rough roads, fields and construction sites.

Integrated Smart Resistor for Cleaner Installation

This model includes a built-in smart resistor on the indicator circuit, helping to reduce common issues such as CANbus bulb warning errors and fast-flashing indicators on many modern towing vehicles. This makes installation cleaner by reducing the need for extra external load resistors or messy wiring modifications.

The lamp is supplied pre-wired with plug and socket and 60 cm cable, helping installers complete replacements and upgrades faster with less downtime.

Key Features

• Left-hand LED rear combination lamp designed for professional trailer and vehicle applications.
• 7 lighting functions including stop, tail, indicator, rear fog, reverse, reflector and red triangle.
• Integrated red triangle reflector, ideal for trailer rear lighting compliance.
• 9–33 V DC input, suitable for both 12 V and 24 V systems.
• Built-in smart resistor helps reduce CANbus bulb errors and indicator hyper-flash.
• CREE XTE LEDs provide strong light output with up to 50,000 hours service life.
• IP67 sealed housing protects against dust, water and harsh weather.
• CISPR 25 Class 4 EMC performance helps reduce interference with vehicle electronics.
• ECE approvals include R10, R3, R6, R7, R23, R38 and R91.
• Compact size of 256 × 130 × 40.5 mm for easy replacement and upgrade projects.

Technical Specifications

Ideal Applications

• Commercial trailers and semi-trailers
• Agricultural trailers, tractors and implements
• Plant trailers and construction equipment
• Recovery vehicles and transport trailers
• Fleet upgrades from halogen to LED rear lighting
• 12 V and 24 V trailer lighting replacement projects

Why Choose the LG574 LED Tail Light?

The LG574 LED tail light is built for operators who want more than a basic replacement lamp. It combines strong LED performance, European road approvals, smart resistor technology and a rugged sealed housing in one professional rear lighting solution.

For fleets, workshops and trailer operators, it helps reduce maintenance, improve visibility and keep vehicles working safely in demanding road, farm and site conditions.