The RELIANCE unidirectional elevated LED light fixture is designed specifically for approach centerline and crossbar lighting applications, delivering a high-performance solution for modern airfields. Emitting white light, this elevated fixture supports a broad range of critical airfield lighting functions including ICAO and FAA-compliant implementations such as approach centerline, crossbar, siderow, runway threshold, runway end, threshold wing bar, and stop bar lighting. The fixture may be optionally equipped with the advanced IQ version featuring an integrated Individual Lamp Control and Monitoring System (ILCMS), offering intelligent communication and control capabilities. Other available configurations include a monitored version with integrated fail-open technology and a non-monitored model for simpler installations.
The fixture fully complies with major global aviation standards, ensuring suitability for both civil and military airfields. Certification includes FAA L-862S(L) according to AC 150/5345-46 and FAA Engineering Brief No. 67, ICAO Annex 14 Volume I, EASA CS-ADR-DSN, US MIL UFC 3-535-01, NATO STANAG 3316, and national guidelines such as Canada TP 312. It can be installed on existing mounting systems compatible with elevated halogen lights, making retrofitting straightforward and cost-effective.
In terms of efficiency, RELIANCE elevated LED fixtures require less than 50 watts of power while achieving a power factor greater than 0.95, a significant reduction compared to the 150W–200W demands of conventional incandescent systems. The fixtures are high-intensity and fully dimmable, with light output curves that align with traditional halogen responses. This ensures seamless integration into existing lighting systems. The units also support IQ 2A functionality, enabling precise intensity control and further energy savings through ILCMS-compatible infrastructure. Easy aiming in azimuth is achieved via a dedicated leveling device, and the twin-screw design facilitates stable alignment.
From a sustainability standpoint, the RELIANCE series delivers exceptional longevity with a Mean Time Between Failures (MTBF) of 56,000 hours at full intensity and over 200,000 hours under typical operating conditions. The compact form factor is engineered to endure the extreme conditions found at runway thresholds and ends, including resistance to strong jet blasts. The LED design eliminates the need for color filters, thereby avoiding color shifts and filter maintenance. Furthermore, the IP67-rated enclosure ensures robust protection against water, dust, and insects, contributing to a long maintenance-free lifecycle.
Safety features are a major component of the RELIANCE elevated fixtures. They are built with advanced lightning protection systems compliant with ANSI/IEEE C62.41-1991 Location Category C2, offering resilience to surges up to 10,000 volts and 5,000 amps. For enhanced monitoring, LED units can be equipped with internal fail-detection, causing them to safely disconnect in case of failure. This open-circuit condition allows external systems like Constant Current Regulators (CCRs) and ILCMS to accurately detect faults and alert maintenance personnel, ensuring operational integrity.
The RELIANCE fixtures are powered via any IEC- or FAA-compliant transformer up to 150W. Integrated electronics are designed to optimize energy efficiency while remaining compatible with global airfield power systems. Detailed VA load calculations are available in the product manual for proper system planning. With a focus on performance, safety, sustainability, and operational intelligence, the RELIANCE elevated approach centerline and crossbar LED lights represent a future-ready solution for airfield lighting infrastructure.
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