The S4GA Medium Intensity Portable Runway Threshold End Light is a robust, battery-powered, bidirectional (red/green) elevated lighting solution specifically engineered to illuminate temporary runways, remote airfields, backup airport operations, and emergency landing zones in full accordance with global aviation standards. Compliant with ICAO, EASA, FAA, CASA, DGAC, AFAC, TP312, CZ CAA, and NATO STANAG requirements, it offers a turn-key solution for airfield lighting where fixed infrastructure is unavailable or impractical.
Designed for rapid deployment and use in challenging environments, the SP-401 light is weather-resistant and supports high autonomy operation with advanced radio-controlled and wireless mesh communication technology. The unit is controlled via the S4GA handheld UR-101 controller, UR-201 control and monitoring unit, or Airfield Lighting Control and Monitoring System (ALCMS). It can also be activated by air-band radio (pilot-controlled lighting) and GSM interfaces. Users can configure the light through a 3-step intensity setting (10%, 30%, 100%) and various operating modes including dusk-till-dawn automation and NVG-compatible infrared output for covert operations.
This light employs high-performance LED optics capable of delivering red and green outputs at 320 and 450 candela respectively, tested and certified by accredited laboratories. The LED units are bidirectional, user-replaceable, and designed for an operational lifespan of up to 100,000 hours. Maximum power consumption is a modest 1.8 W. Optional infrared (IR) LEDs further expand the operational versatility of the light in tactical or night vision scenarios.
Power is provided by dual, user-replaceable and air-transportable batteries, available in various chemistries to meet different operational requirements. Lead-acid batteries provide up to 432 hours of autonomy at 30% intensity, while Li-ion and LiFePO4 variants extend this autonomy to 816 and 576 hours, respectively. Arctic-pack configurations using Cyclon batteries offer reliable performance in extreme temperatures with up to 240 hours autonomy and an extended lifecycle of 10–15 years. All batteries are globally available, deep-cycle, and designed for rapid replacement without specialized tools in under 15 minutes.
The light can be recharged using the OCT-401 charger, a drop-in trailer-based charging station, or an optional solar panel setup for off-grid operation. Power inputs can also include electrical grid connections (24 VDC), ensuring the light remains operational even in the event of internal battery failure. Built-in temperature sensors and low-voltage cutoff features protect battery integrity and extend lifecycle performance. Additionally, the unit features a temperature-compensated MPPT charging controller and is firmware-upgradable to support long-term operability.
The wireless mesh control system operates on license-free frequency bands (typically 868 MHz, with optional 915 MHz and 2.4 GHz), and offers a communication range exceeding 10 kilometers through relayed signals. The mesh protocol allows all lights within range to activate simultaneously when one unit is manually triggered, providing near-instantaneous light activation across an entire airfield. The control system includes detachable antennas and is designed to operate reliably amid high RF activity typical in aviation environments.
Physically, the light is housed in a rugged casing made from UV-stabilized Lexan polycarbonate with a borosilicate hardened glass dome, both built to withstand harsh environments with an ingress protection rating of IP68 and an impact rating of IK10. These specifications are independently verified by third-party laboratories. The unit is equipped with a pressure stabilizing valve, transportation fuse, detachable antenna, and a visual battery status indicator. It includes a quick-release aluminum carrying handle and is available with frangible mounting for hard surfaces or rubber pads for flexible surface placement. Its dimensions are 244 mm x 185 mm x 297 mm, with a maximum height of 360 mm (excluding antenna) and a weight under 15 kilograms.
Each unit is delivered fully assembled, requiring only antenna attachment and optional connection to mounting gear or solar panels. The modular design supports easy replacement of optics, dome, and batteries, and uses common tools and off-the-shelf components to simplify field maintenance. The LED head, dome, casing, and electronics are designed for a 15-year service life.
Optical performance is certified to exceed ICAO Annex 14 requirements, delivering minimum red and green light intensities of 280 cd and 400 cd, respectively, as validated by Intertek, STAC, Bureau Veritas, or TUV Rheinland. The system supports up to 99 brightness levels and daytime operation if needed. Each light includes a manual on/off button for standalone activation and integrates seamlessly with other units to form a coordinated lighting system.
The lights are fully CE-compliant under RED Directive 2014/53/EU and ROHS Directive 2011/65/EU, with all electronics, optics, and mechanical components covered under a two-year manufacturer’s warranty. Batteries carry a one-year warranty and the system is manufactured in an ISO 9001:2008 certified facility. For quality assurance and long-term support, the manufacturer also provides certified test reports and conformity certificates, including a 2024 STAC certificate for aeronautical lighting systems.
In sum, the S4GA Medium Intensity Portable Runway Threshold End Light is a field-proven, ICAO-compliant, solar and battery-capable lighting solution designed for high-performance, low-maintenance operation in the most demanding airfield environments worldwide.
https://solutions4ga.com/product/medium-intensity-portable-runway-threshold-end-light/
