The A850SRLED Old Town Intellistreets acorn post top luminaire combines classic decorative form with advanced smart city technology to create a lighting solution that is both visually timeless and functionally forward-looking. Its traditional acorn silhouette, complete with a cast aluminum finial and solid cast aluminum roof, is enhanced with optimized heat sinks that ensure maximum thermal management, extending the life and maintaining the performance of the LED light source. The acorn globe is sealed directly to the roof, creating a moisture-free and insect-resistant optics chamber that safeguards the LEDs and optical components.
Designed as a smart decorative lighting fixture, this luminaire comes standard with integrated RGBA notification flashers, a concealed downward-facing speaker, and a powerful electronic control module (ECM). At the heart of its intelligence, the ECM serves as the system’s brain, equipped with three communication radios and multiple inputs for smart city components. This allows the luminaire to connect seamlessly with Intellistreets® technology, an integrated platform that enables municipalities to see, hear, and record what is happening in public spaces through cameras and audio sensors. The result is a lighting system that goes beyond illumination, contributing to enhanced safety, communication, and community engagement.
The mechanical design reflects durability and serviceability. The heavy wall die-cast fitter is made from high-strength 360 alloy and includes a hinged, tool-less entry door for quick access to internal components. A one-piece ring gasket ensures that insects cannot penetrate the globe assembly, while stainless steel hardware with specialized finishes complements the fixture’s longevity. Tool-less access to the driver compartment also makes installation and maintenance simple and efficient, minimizing downtime and labor costs.
Optics are provided through a clear textured acorn lens, offered in impact-resistant DR acrylic or UV-stabilized polycarbonate. The textured surface, created through injection molding, provides glare mitigation for improved visual comfort. The LEDs are mounted in a fully shielded, downward position to maximize efficiency while reducing uplight. Designed with environmental responsibility in mind, the LEDs are RoHS compliant, containing no hazardous substances such as lead or mercury, and are 100% recyclable. Lumen maintenance is validated according to IESNA TM-21 projections based on LM-80 test data and in-situ luminaire testing, ensuring long-lasting performance. With a predicted lifetime of approximately 100,000 hours at 25°C and more than 70% lumen output retention, this fixture delivers reliable, high-quality illumination over decades of use. Available color temperatures include a standard 4000K, with optional 2700K, 3000K, 3500K, and 5000K selections, all with a minimum CRI of 70.
The electronic driver is UL recognized and securely mounted within the luminaire. This high-efficiency driver operates on 50/60Hz, offers dimming capability through a 0–10V protocol, and is protected with supplemental surge protection in line with IEEE/ANSI C62.41.2 guidelines. It includes safeguards against overload, overheating, and short circuits, while achieving a high power factor above 0.9 and maintaining a total harmonic distortion (THD) under 20%. Quick-disconnect wiring simplifies installation and servicing. An ambient light sensor is also integrated, allowing automatic overrides during unusual lighting conditions such as storms.
Enhancing its decorative versatility, the A850SRLED Old Town luminaire offers optional ornamental rings. Choices include the Cast Deco Ring with gold medallions (CDR), painted-to-match medallions (CDRP), or custom logo medallions (CDRCL). For a different aesthetic, a Perforated Brass Deco Ring is available in either raw brass (PBDR) or painted finishes (PBDRP). These decorative elements, combined with the fixture’s high-quality six-stage polyester powder coat paint system, provide both visual elegance and long-term surface protection that exceeds AAMA and ASTM standards.
The RGBA flashers built into the fitter provide 360-degree visibility, making them useful for multiple applications, such as emergency distress beacons, sequential strobing for wayfinding, or decorative holiday lighting. Meanwhile, the integrated concealed speaker delivers audio up to 90 dB, synchronized across multiple fixtures using patented technology. This makes the luminaire capable of broadcasting announcements, alerts, or music in public spaces while blending seamlessly into its decorative design.
With its blend of traditional acorn styling, robust construction, advanced optics, and integrated Intellistreets® smart city technology, the A850SRLED Old Town luminaire is more than just a light source. It is a multifunctional platform for urban communication, safety, and beautification, suited for municipal streets, parks, campuses, historic districts, and community gathering spaces.
https://www.sternberglighting.com/products/600/a850srled-old-town-intellistreets
