LED Tail Light Triangular Combination with Built In Smart Resistor (RH) - LG571

LED Tail Light Triangular Combination with Built In Smart Resistor (RH) – LG571

This LED triangular combination tail light is engineered for modern commercial fleets that need compact rear lighting with full road-legal functionality on one unit. The LG571 right-hand lamp covers stop, tail, indicator, fog, reverse, reflector and the rear warning triangle, while staying stable from 9–33 V DC on 12 V and 24 V systems. Fully ECE approved and CISPR 25 Class 4 compliant, it delivers strong visibility without radio interference.

If you run trailers, low loaders or agricultural kit on mixed fleets, you know the problem. Multiple separate lamps bolted on, wiring everywhere, fault tracing that eats hours. The LG571 solves that by packing seven rear functions into one compact 218 × 145 mm triangular body, built around high-intensity Cree XTE LEDs and a smart built-in load resistor on the indicators.

The smart resistor is the quiet hero here. Many LED retrofits cause “hyperflash” or bulb-out warnings on modern trucks because the control unit thinks the indicator is blown. This lamp’s integrated smart load resistance is tuned for vehicle electronics, so indicators flash at the correct rate without extra resistors, relays or guesswork. Less time modifying looms, more time the trailer is earning.

The unit runs on 9–33 V DC, so it’s ready for mixed 12 V / 24 V fleets across trucks, trailers, plant, and agri equipment. With 45 LEDs delivering stop, tail, indicator, fog, reverse, reflector and ECE R91 triangular warning, you get clear rear signalling in amber, red and white, with a crisp 6000 K reverse light for better visibility when manoeuvring in dark yards or fields. Tested to 15 g vibration, sealed to IP67, and rated to 50,000 hours, it’s built for long life on rough European roads.

Approvals matter on lighting, especially for fleets running across borders. LG571 is approved to ECE R10 (EMC), R3, R6, R7, R23, R38 and R91, so it’s road-legal for rear lighting, indicators, fog and reverse where those regulations apply. EMC performance is strong too: CISPR25 Class 4 means it’s designed to minimise radio frequency interference with vehicle comms, GPS, and other electronics.

Installation is straight-forward. The lamp is supplied with a socket and 30 cm cable, giving you enough length to route to a junction box or existing harness. At only 35 mm deep, it sits neat on the body without sticking out, reducing the risk of impact damage. Right-hand orientation is fixed, so pair this RH unit with the matching left-hand version for a complete triangular rear lighting set.

Key Features

• Full triangular combination lamp (RH) – integrates stop, tail, indicator, fog, reverse, reflector and ECE triangle in one compact right-hand unit.
• Wide 9–33 V DC input – stable operation on both 12 V and 24 V systems, ideal for mixed fleets and cross-border operations.
• 45 high-intensity LEDs – Cree XTE emitters for strong output, long life and consistent colour in amber / red / white.
• Built-in smart load resistor on indicators – prevents hyperflash and bulb-out warnings on CANbus and modern truck systems without extra resistors.
• Crisp 6000 K reverse light – cool white output improves rear visibility for coupling, yard manoeuvres and tight site work at night.
• Long service life – 50,000 h rated – reduces downtime and maintenance versus filament lamps, especially on high-mileage trailers.
• Robust and sealed – IP67 – dust-tight and protected against immersion; designed for wash-downs, rain and road spray on European roads.
• Vibration tested to 15 g – suitable for trailers, agri and plant equipment that see harsh terrain and heavy-duty use.
• ECE approved rear functions – compliant with ECE R3, R6, R7, R23, R38, R91 for reflectors, indicators, stop/tail, reverse, rear fog and triangle.
• Low-interference electronics – ECE R10 & CISPR25 Class 4 – minimises electromagnetic interference with radios, GPS, telemetry and other vehicle systems.
• Compact dimensions – 218 mm (W) × 145 mm (H) × 35 mm (D) for clean installation on bodywork and rear frames.
• Supplied with socket & 30 cm cable – simplifies wiring and retrofit work into existing harness layouts.

Ideal Applications

• Truck and semi-trailers needing a compact, fully approved right-hand triangular rear combination lamp.
• Agricultural trailers and slurry tanks operating on rough ground where vibration and moisture protection are critical.
• Low loaders, plant and machinery trailers that require durable LED rear lighting with integrated triangle for road use.
• Municipal and utility fleets (tippers, service trailers, equipment carriers) looking to standardise on LED rear lighting.
• Cross-border European operations where consistent ECE-compliant rear lighting is mandatory.

Why Choose LED-Global Lighting

LED-Global focuses on high-performance vehicle lighting for professional users, not generic accessories. Every lamp, including the LG571, is engineered around European regulations, practical fleet requirements and real-world workshop feedback. You get tested, road-proven products, clear specifications and support from people who understand electrical systems and fleet pressures.

If you want rear lighting that fits once, works with modern electronics and keeps you legal across Europe, this is exactly what we design for.