The Medium Intensity Portable Threshold Light by S4GA is a state-of-the-art mobile airfield lighting solution designed for rapid deployment and reliable performance on temporary, remote, or backup runways, as well as emergency landing airstrips. Engineered to meet stringent international aviation standards, this elevated, unidirectional green light is battery-powered, radio-controlled, and fully compliant with ICAO guidelines. It is ideal for temporary airfields, offering a swift and robust lighting solution wherever needed.
This portable threshold light complies with numerous international aviation authorities, including ICAO (Annex 14, Volume I, 9th Edition), EASA (Europe), FAA (USA), CASA (Australia), DGAC (France), AFAC (Mexico), TP312 (Canada), CZ CAA (Czech Republic), and NATO STANAG requirements. Its optical performance meets or exceeds international standards, delivering a green light output of 450 candela—tested and certified by independent laboratories such as Intertek, Bureau Veritas, and TUV Rheinland. The LED optics, with a lifespan exceeding 100,000 hours, ensure consistent visibility and offer optional infrared functionality for covert NVG operations.
The unit features an advanced battery system with multiple options tailored to specific operational demands. The standard lead-acid configuration includes two deep-cycle VRLA batteries (12V/9Ah each), offering up to 432 hours of autonomy at 30% intensity. Higher-performance options include lithium-ion (816 hours autonomy, 408 Wh total capacity) and LiFePO4 (576 hours autonomy, 288 Wh), both with 3,000-cycle lifespans designed for up to 7 years. An Arctic Pack configuration utilizing Cyclon batteries provides operation in extreme cold environments with up to 240 hours of runtime and a lifespan of up to 15 years. All batteries are user-replaceable, air-transportable, and globally available.
Charging versatility is a core feature of this system. The light can be charged via an OCT-401 external charger or through drop-in charging in a trailer, both requiring approximately 8 hours. An optional solar charging capability allows for fully autonomous, off-grid operations. The electronics incorporate temperature-compensated MPPT charging, a low-voltage cutoff to protect the battery, and an integrated temperature sensor for optimal performance in all conditions.
Wireless communication is based on a mesh protocol operating in the unlicensed 868 MHz band (optional 915 MHz or 2.4 GHz), offering a reliable, long-range signal exceeding 10 km through relayed transmission. Each light features a detachable external antenna to maximize communication range. The unit can be operated in various modes—steady, flashing, dusk-to-dawn, visible, infrared, or both. Control options include the UR-101 handheld controller, UR-201 control unit, or integration with an ALCMS (Airfield Lighting Control and Monitoring System). Lights can also be manually activated using the onboard emergency ON/OFF button, which triggers nearby lights within radio range in under one second.
The construction of the light is designed for maximum durability and field serviceability. It features a rugged Lexan polycarbonate casing stabilized against UV exposure, and a borosilicate hardened glass dome. Components include pressure-stabilizing valves, transportation fuses, a detachable antenna, and aluminum carrying handles. The light has a casing lifespan of up to 15 years and withstands harsh environmental conditions with IP68 ingress protection and IK10 impact resistance, verified through accredited third-party testing. It can operate in temperatures from -20 to 50°C, with optional ranges extending from -40 to 80°C.
Physically, the light stands under 360 mm tall and weighs less than 15 kg. All electronics and batteries are enclosed within the unit, and all components—including the LED optics, dome, and batteries—are field-replaceable without specialized tools. A uniform battery system is used across all S4GA portable lighting models (runway, taxiway, obstruction), ensuring logistical simplicity. Mounting options include frangible couplings for hard surfaces and rubber pads for deployment on any terrain.
Performance is enhanced through fine brightness control—offering at least 99 intensity levels—and the ability to operate during daylight if required. Each unit features indicators for battery level and charging status, and the control system supports over-the-air firmware updates. Safety is prioritized through redundant systems, a secondary backup battery, and five layers of failure protection.
This light is delivered as a complete, turnkey solution. Installation involves only attaching the antenna, engaging the control switch, and securing the light to its mounting or solar accessories. The system is manufactured in ISO 9001:2008 certified facilities and comes with a minimum two-year warranty on the light (excluding batteries), and a one-year warranty on batteries.
S4GA’s Medium Intensity Portable Threshold Light represents a high-performance, globally compliant, and user-friendly airfield lighting solution—ideal for military, humanitarian, and civil aviation operations requiring flexibility, speed, and reliability.
https://solutions4ga.com/product/medium-intensity-portable-threshold-light/
