The SP-500 from S4GA is a high-intensity obstruction light designed specifically for marking tall structures exceeding 150 meters in height, such as chimneys, communication towers, bridge pylons, and other significant obstacles. Fully compliant with ICAO, FAA, and EASA regulations, the SP-500 is an advanced, energy-efficient LED aircraft warning light that ensures safe air navigation around tall installations, both during the day and at night. The luminaire combines red and white LEDs, offering both steady and flashing operational modes, making it suitable for around-the-clock use in all lighting conditions.
Built to the highest international standards, the SP-500 features powerful optics that provide omnidirectional illumination with light intensities of 200,000 candela, 100,000 candela, and 20,000 candela depending on the operational mode and type classification (Type A/B). The optical components are rated for over 100,000 hours of service life, ensuring long-term performance with minimal maintenance. The unit intelligently adjusts its output based on ambient light conditions using an integrated day/night detection system, which operates through either a twilight sensor or astronomical clock via a connected controller. This dynamic adaptation allows the light to automatically switch between day and night modes as required.
To meet the rigorous synchronization requirements often needed in multi-light configurations—such as wind farms or large infrastructure projects—the SP-500 is equipped with a GPS/GLONASS-based control system. This ensures precise multi-lamp synchronization, which is critical for aviation safety and visual consistency. In addition to standalone functionality, remote monitoring and control are supported, enabling seamless integration into larger obstruction lighting systems.
The SP-500's construction emphasizes durability and ease of use. Its body is crafted from lightweight alloys and advanced composite materials, with the entire unit weighing less than 14 kilograms for the lamp holder and under 10 kilograms for the lamp controller. The external surfaces are treated with antioxidant layers for extended environmental protection. The enclosure meets or exceeds IP65 standards for water and dust ingress, and is rated to withstand mechanical shock up to IK08. Furthermore, the SP-500 is designed to operate reliably in harsh climates, with an operating temperature range from -30°C to +55°C and a storage temperature range from -50°C to +75°C.
Power efficiency is another key strength of the SP-500. Depending on the operational mode, power consumption remains low—up to 400W for Type B and up to 610W for Type A operation at 40 flashes per minute. Built-in overvoltage protection (Type TI + TII) rated at 40kA guards against electrical surges in compliance with the PN-EN 61000-4-5:2009 standard, ensuring reliable performance even in challenging power environments.
What sets the SP-500 apart is its versatility. It combines the functionalities of both night and day obstruction marking in a single compact unit. It can function as a low-intensity light at night (compliant with ICAO Type A or B), and as a high-intensity light during the day (Type A/B). In some configurations, it can also serve as a medium-intensity night light (ICAO Type B or C) while still delivering high-intensity performance during daylight hours. This dual-functionality eliminates the need for separate lighting systems, reducing installation complexity and overall cost.
In conclusion, the S4GA SP-500 is a robust, intelligent, and efficient high-intensity obstruction lighting solution for marking tall structures. With advanced synchronization, long-life LED optics, environmental resilience, and full regulatory compliance, the SP-500 is ideal for aviation safety applications in both urban and remote settings.
https://solutions4ga.com/product/high-intensity-obstruction-light-ab/
