The PRO III 12" L-850F LHS Land and Hold Short Light is a high-intensity, unidirectional in-pavement lighting fixture specifically designed for use in Land and Hold Short Operations (LAHSO). Engineered for reliability and performance in critical airfield applications, this fixture incorporates two 48-watt quartz halogen lamps operating at 6.6 amps—one serving as the primary source and the other as a backup. In the event of a lamp failure, the unit automatically switches to the backup lamp, ensuring uninterrupted functionality. The complete LAHSO lighting system comprises six L-850F light fixtures, a power and control unit (PCU), and a tower control panel, forming an integrated safety system to support precise runway operations.
Certified under FAA AC 150/5345-46 (current edition) for L-850F fixtures, the PRO III LHS light meets stringent federal requirements for airfield lighting systems. It features a shallow profile under 0.25 inches (6 mm), qualifying as FAA Style 3, which minimizes protrusion from the pavement surface and reduces the potential for impact or debris accumulation. The fixture is ETL certified, ensuring compliance with applicable safety and performance standards.
Designed for durability and ease of maintenance, the PRO III LHS light offers a simplified structure with few parts to stock, reducing inventory demands and service time. Maintenance is streamlined by the elimination of sealants for the prism and feed-through assemblies, allowing for quick replacements in the field. A built-in pressure test plug enables rapid verification of the fixture’s internal seal integrity, enhancing safety and operational confidence.
The housing is constructed from high-strength forged aluminum for resilience in demanding environments and is paired with a shallow aluminum base for low-profile installation. With its long-lasting 48-watt halogen lamps, redundant light source capability, and low power consumption, the PRO III 12" L-850F LHS light provides a robust, efficient, and compliant solution for airfields implementing LAHSO procedures.
https://www.eaton.com/us/en-us/catalog/airfield-lighting/pro-iii-12-l-850f-lhs-land-and-hold-short-light.html
