The PRO APF 12” L-850 RCL/TDZ LED Inset Runway Light is a highly durable, energy-efficient fixture designed to meet the demanding requirements of modern airfield operations. This versatile 12-inch light can function either as a Runway Centerline Light (RCL) or a Touchdown Zone Light (TDZ), offering flexibility for airfield lighting systems. The L-850 RCL configuration is a bidirectional unit, commonly using a white/white or white/red light pattern to support aircraft alignment and safe ground movement. In contrast, the L-850 TDZ variant is unidirectional and emits white light to enhance visibility in the touchdown zone, guiding pilots during landing.
This fixture is fully certified and compliant with FAA AC 150/5345-46 and FAA Engineering Brief 67, current editions, confirming its suitability for use in U.S. airfield lighting systems. It is also ETL certified, ensuring adherence to stringent performance and safety standards.
Engineered for maximum efficiency and longevity, the PRO APF 12” light features Wavetrac™ technology, which significantly reduces power consumption—up to 60% lower than traditional incandescent fixtures. Its high-performance LED light engine offers a projected lifespan of over 50,000 hours at 6.6 A, making it a long-lasting and low-maintenance solution. The fixture also includes high-frequency 400 Hz PWM dimming, which eliminates perceptible flicker and supports seamless integration with all known CCR types, ensuring smooth operation within existing airfield systems.
Designed for resilience, the unit is dust- and watertight to IP68, with a robust IEC Style 3 housing that offers a low-profile protrusion of less than 0.25 inches (6.35mm) in accordance with FAA Style 3 guidelines. Its modular construction reduces maintenance time and part stocking requirements. With built-in 10kV/5kA surge protection, failure monitoring, and a 0.88 second switch-on time, this light ensures reliable performance even in challenging conditions.
The operating temperature range of -40°C to +85°C makes the PRO APF 12” suitable for use in extreme environments, from icy tundra to scorching runways. For cold-weather applications, an optional arctic kit (patent pending) is available to further enhance performance and reliability.
Whether used for precision runway centerline marking or touchdown zone delineation, the PRO APF 12” L-850 RCL/TDZ LED Inset Light delivers industry-leading performance, efficiency, and durability for commercial and military airfields alike.
https://www.eaton.com/us/en-us/catalog/airfield-lighting/pro-apf-12-l-850-rcl-tdz-runway-centerline-touchdown-zone-light-led.html
