The S4GA SP-502 is a medium-intensity aircraft warning light designed to ensure safe air navigation around structures ranging from 45 to 150 meters in height. Fully compliant with ICAO, FAA, and EASA standards, the SP-502 is specifically engineered to mark a wide range of obstacles such as chimneys, communication towers, bridge pylons, cooling towers, and power plant blocks. Its dual-mode capability makes it suitable for both daytime and nighttime operation, helping to prevent aviation accidents by clearly indicating the presence of tall structures.
This obstruction light utilizes advanced LED optics to deliver high-intensity illumination with exceptional reliability and performance. The SP-502 produces 20,000 candela of white light during daytime operation (ICAO Type A) and 2,000 candela of red light for nighttime marking (Types B and C), depending on the configuration. The white LEDs offer a color temperature of 5700K, while the red LEDs emit at a wavelength of 620 nm. These optics are omnidirectional with 360° coverage and are designed to last over 100,000 hours, reducing maintenance and ensuring continuous operation in demanding environments.
The SP-502 operates in both steady and flashing modes and includes an integrated day/night detection system. This system can be triggered either by a dusk switch or an astronomical clock provided through external controller equipment. This automated control enables seamless transitions between day and night modes, maintaining compliance with aviation lighting requirements without manual intervention. The luminaire also supports GPS/GLONASS-based synchronization, allowing multiple units to flash in unison—an essential feature for wind farms or other installations requiring coordinated lighting across several structures.
Engineered for modern infrastructure, the SP-502 supports remote monitoring and control, giving operators full oversight and flexibility in system management. It is available with a supply voltage of either 48 VAC/VDC or 230 VAC/VDC, depending on site requirements. The power consumption is impressively low: up to 110W in daytime flash mode (Type A), 25W in nighttime flash mode (Type B), and 35W in steady nighttime mode (Type C), making it a highly energy-efficient solution for medium-height obstruction lighting.
Durability and environmental resilience are central to the SP-502’s design. It includes built-in overvoltage protection rated at 40kA, conforming to PN-EN 61000-4-5:2009, which safeguards the system from electrical surges and ensures operational continuity. The enclosure has a protection rating of IP65 or higher, guarding against dust and water ingress. Mechanically, the lamp is shock-resistant with a minimum rating of IK08. Furthermore, it is certified for electromagnetic compatibility (EMC), ensuring that it functions reliably without interference in sensitive installations.
The physical construction of the SP-502 reflects thoughtful engineering for ease of installation and long-term performance. The body is made from lightweight alloys and composite materials, with the lamp unit weighing less than 2.5 kg or 3.5 kg depending on configuration, and the lamp driver weighing only 8 kg. The housing is treated with antioxidant coatings to resist corrosion and wear, even in harsh industrial or coastal environments.
Temperature resilience is another key attribute of the SP-502. It can operate in temperatures ranging from -30°C to +55°C and can be safely stored in environments from -50°C to +75°C, making it suitable for deployment in both arctic and desert climates.
Altogether, the S4GA SP-502 is a robust, efficient, and fully compliant medium-intensity obstruction light, offering dependable performance for marking structures between 45 and 150 meters in height. With its advanced LED optics, intelligent control systems, low power consumption, and rugged construction, it stands out as an ideal choice for infrastructure operators seeking safe, certified, and low-maintenance aviation obstruction lighting solutions.
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