Medium Intensity LED Inset Light for Runway Threshold and End Lighting Applications
ADB Safegate

Medium Intensity LED Inset Light for Runway Threshold and End Lighting Applications

The RELIANCE 2 LED Inset Light is an advanced, low-profile 8-inch unidirectional or bidirectional lighting solution designed specifically for threshold and runway end applications. Engineered for medium intensity operation, these inset fixtures are compliant with Style 3 standards, featuring a low protrusion of ≤6.35 mm to enhance safety and reduce wear from aircraft contact. The RELIANCE 2 system is fully compatible with IQ ILCMS remote capabilities, allowing intelligent lighting control and monitoring for modern airfield operations.

Designed with a focus on performance and optical precision, RELIANCE 2 fixtures incorporate pulse width modulation (PWM) at 400 Hz to optimize LED efficiency while eliminating perceptible flicker for moving observers. This technology ensures consistent performance across all brightness levels supported by IEC- or FAA-compliant constant current regulator (CCR) systems. The light output conforms to the dimming behavior of traditional halogen fixtures, ensuring seamless integration into existing airfield lighting systems. A redesigned bottom pan profile allows for installation in very shallow base cans, providing flexibility in retrofit and new construction projects alike. Moreover, the absence of a negative slope in front of the prisms enhances beam clarity and improves photometric reliability.

Sustainability is a core aspect of the RELIANCE 2 design. The fixture is built with fully encapsulated, all-in-one universal power supplies that serve a wide range of inset applications including runway, taxiway, approach, and omni-directional uses. The latest generation of LEDs ensures long-term energy efficiency, reduced power consumption, and extended operational life. A reinforced top cover provides durability that substantially exceeds industry standards, improving long-term reliability in high-traffic runway environments. The fixture is housed in an IP68-rated enclosure suitable for harsh climates and corrosive conditions, with all external hardware made of stainless steel for added resilience. RELIANCE 2 fixtures are designed to be directly compatible with existing infrastructure, enabling straightforward replacement of older LED inset units without the need for rewiring or system upgrades.

Safety enhancements include a robust mechanical design that strengthens internal components, simplifying maintenance and improving reliability. The fixture supports Failed-LED Detection as outlined in FAA Engineering Brief 67D and features rugged lightning protection that complies with ANSI/IEEE C62.41-1991, Location Category C2. This level of surge protection safeguards the system against combination wave strikes of 1.2/50μS – 8/20 μS with a peak voltage of 10,000 V and a peak current of 5,000 A, offering dependable performance in electrically volatile airfield environments.

The integrated power supply system of the RELIANCE 2 Non-Monitored model features a fully encapsulated 6.6 A electronic converter, eliminating the need for any additional electrical components between the fixture and the transformer. It includes a two-pole L-823 plug for direct transformer connection and an 18-inch power cable. The system maintains a high power factor, typically exceeding 0.9 at 6.6 A, ensuring efficient energy usage and system reliability. Overall, the RELIANCE 2 LED inset light delivers a powerful, sustainable, and smart lighting solution for modern airfields requiring dependable threshold and runway end illumination.

https://adbsafegate.com/products/airfield/runway-lighting/reliance-2-threshold-andor-end-medium-intensity-inset-8
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