The PRO APF 12" L-850C,D IREL/IRTEL is a high-intensity LED inset light designed for critical runway edge and threshold end applications. The IREL model serves as a bidirectional light primarily used at locations where taxiways intersect runways or other runway edge areas where elevated lights are impractical. Meanwhile, the IRTEL model is employed on runways where threshold and end lighting are combined in a single location, providing clear, reliable visual guidance to pilots during critical phases of landing and takeoff.
This lighting fixture complies with key aviation standards, including FAA AC 150/5345-46 (current edition) under the L-852T specification, as well as FAA Engineering Brief 67. It is ETL certified, demonstrating adherence to high safety and quality standards required in the aviation industry.
The PRO APF 12" L-850C,D utilizes Wavetrac™ technology to reduce power consumption by up to 60% compared to traditional incandescent lighting, offering both energy efficiency and reduced operating costs. The fixture is rated IP68 for dust and water tightness, ensuring reliable performance even under harsh environmental conditions.
Its modular design streamlines maintenance by minimizing the number of parts needed to stock and allowing for quicker servicing on site. The light’s operation complies with FAA Engineering Brief 67’s dimming curve requirements, and it incorporates high-frequency 400 Hz pulse-width modulation (PWM) to eliminate flicker perception, enhancing pilot visibility and comfort.
Built-in surge protection rated at 10kV/5kA safeguards the fixture against electrical disturbances. The PRO APF 12" L-850C,D maintains reliable operation across a broad temperature range from -40°C to +85°C, making it suitable for airports in extreme climates and challenging environments. Additional safety features include integrated failure monitoring to ensure operational integrity.
The fixture’s housing features a low profile design, with a protrusion of less than 0.25 inches (6.35 mm), meeting FAA Style 3 standards for inset lighting. This low profile facilitates seamless runway integration without obstructing aircraft movement or maintenance activities. Overall, the PRO APF 12" L-850C,D IREL/IRTEL LED light combines energy efficiency, durability, and regulatory compliance to support safe and efficient runway operations.
https://www.eaton.com/us/en-us/catalog/airfield-lighting/pro-apf-12-l-850c-d-irel-irtel-inset-runway-edge-threshold-end-light-led.html
