The RELIANCE L-861E(L) is a medium-intensity, bidirectional elevated LED light fixture engineered to clearly mark runway thresholds and ends with precision green and red light output. Designed for dependable performance in visual and non-precision instrument flight rule (IFR) conditions, this robust lighting solution is compliant with numerous international aviation standards, including FAA AC 150/5345-46 (current edition) and FAA Engineering Brief No. 67, under the classifications L-861(L), L-861E(L), and L-861SE(L). It is also certified by ETL and conforms to ICAO Annex 14, Volume I; Transport Canada TP 312; and Australia’s MOS Part 139 guidelines, ensuring global applicability and operational reliability.
This lighting fixture supports a range of applications across different regulatory frameworks. Under FAA regulations, the L-861(L) version is suitable for runway edge lighting on both visual and non-precision IFR runways. The L-861E(L) and L-861SE(L) variants are tailored for runway threshold and end illumination, meeting the requirements of both visual and non-precision IFR operations. For ICAO and Transport Canada standards, the light is ideal for non-precision approach runways, offering consistent performance in marking runway edges, thresholds, and ends. The fixture also complies with MOS Part 139 specifications, supporting both low- and medium-intensity runway lighting and applications including stopways.
Engineered for efficiency and long service life, the RELIANCE L-861E(L) provides an average LED lifespan of 56,000 hours under high-intensity conditions, and over 150,000 hours in typical operating environments. This durability drastically reduces maintenance needs and eliminates the recurring costs associated with re-lamping. To simplify upkeep, the fixture incorporates a single-latch, stainless steel clamp that facilitates quick removal and replacement of the lens and top cover. Watertight integrity is achieved through high-performance gaskets between the lens, top cover, and the fixture’s upper and lower housing components.
For operations in extreme climates, an optional arctic configuration features a thermostatically controlled heater to prevent the accumulation of snow and ice, ensuring consistent light output. This heating capability mirrors the de-icing functionality of traditional incandescent systems. The fixture’s design allows for a ±4° leveling adjustment post-installation, using just three screws, enabling precise alignment for optimal performance. Each unit is delivered with a standard 1.5-inch coupling but can be ordered with a 2-inch coupling or alternative threading to suit specific mounting requirements.
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