The PRO APF L-861 MIRL is an advanced LED fixture designed for use as a medium intensity runway edge light, medium intensity threshold or end light, and displaced threshold light. This versatile lighting solution is engineered to meet the demanding requirements of modern airfields, providing reliable illumination for runway edges under various operational conditions.
Certified under FAA AC 150/5345-46 Current Edition for the L-861 series and compliant with UFC 3-535-01, the PRO APF L-861 MIRL meets stringent regulatory standards, ensuring its suitability for worldwide airport applications. The fixture is ETL certified, reflecting its adherence to high safety and quality benchmarks.
One of the standout features of the PRO APF L-861 MIRL is its incorporation of WaveTrac™ technology, which significantly reduces power consumption by up to 60% compared to traditional incandescent lighting. This efficiency is complemented by support for a universal power supply commonly used across PRO APF in-pavement fixtures, allowing airports to minimize power supply inventory and simplify maintenance.
The design of the fixture emphasizes ease of installation and maintenance. A removable nut secures the glass dome to the housing, facilitating quick and easy access to both the power supply and the LED optical assembly without the need for specialized tools. Additionally, built-in leveling bosses accommodate standard circular bubble levels, and a three-screw leveling system with hex head bolts allows for precise fixture alignment during installation.
The PRO APF L-861 MIRL is available in multiple installed heights of 14 inches (350 mm), 24 inches (607 mm), and 30 inches (759 mm), making it adaptable to various runway and taxiway configurations. It is compatible with both 1.5-inch and 2-inch baseplate hubs, offering flexibility in mounting options.
Durability is a key attribute of this fixture, which features a highly durable cast aluminum housing painted yellow for corrosion resistance and visibility. The LED technology utilized offers a long projected life exceeding 50,000 hours at 6.6 amps, contributing to reduced maintenance and operational costs over time.
Operational versatility is further enhanced by up to five-step constant current operation and the availability of an external power cord and ground option for compatibility with non-FAA systems. For operations in colder climates, an optional energy-efficient arctic kit is available, which applies a filament directly to the glass dome to minimize energy losses and maintain fixture performance in extreme conditions.
The PRO APF L-861 MIRL also includes a frangible coupling with an integral fluid barrier designed to prevent ambient moisture and precipitation from entering the base, thus protecting internal components. The LED and electronic assemblies are housed within an IP67-rated enclosure, ensuring dust-tight and waterproof performance to maintain reliability in harsh environments. The fixture typically exhibits an in-rush voltage of 1.5 volts, supporting efficient electrical integration into airfield lighting systems.
Overall, the PRO APF L-861 MIRL medium intensity runway edge light combines energy efficiency, durability, and ease of maintenance to deliver a high-performance lighting solution suitable for airports worldwide.
https://www.eaton.com/us/en-us/catalog/airfield-lighting/pro-apf-l-861-mirl-medium-intensity-runway-edge-light-led.html
