The Millenia™ ML660 medium post-top luminaire represents a breakthrough in modern area lighting technology, combining die-cast and permanent mold aluminum components to deliver a design that seamlessly integrates form and function. Its new world urban aesthetic transcends traditional lighting conventions, providing a versatile and visually compelling solution for commercial, institutional, and municipal applications. The luminaire’s medium post-top configuration makes it ideal for streets, plazas, parks, and pedestrian areas, where both performance and architectural elegance are paramount. With a myriad of available options, the ML660 accommodates diverse project requirements while maintaining a cohesive urban design language.
The luminaire housing is constructed from precision-cast aluminum parts, ensuring durability and structural integrity. Thermal management is optimized through convective AAD™ (Advanced Airflow Dynamics) technology, which maximizes heat sink efficiency and enables passive cooling for long-life LED performance and energy efficiency. The aluminum fitter includes four stainless steel Allen-head set screws for secure attachment to a 3-inch OD by 3-inch tall tenon, ensuring a rigid and reliable connection. Stainless steel hardware is included, with Black Oxide conversion coatings for most finishes, while lighter-colored finishes such as White and Silver use non-coated hardware.
Serviceability is enhanced with tool-less access to the driver compartment, simplifying installation and ongoing maintenance. The luminaire features an optional glare-reducing SoftVue™ lens, which provides superior visual comfort and uniform light distribution. The LEDs are fully shielded in a direct downward orientation to maximize efficiency, mounted to optimize thermal transfer to the heat sink, and are 100% recyclable, RoHS compliant, and free of hazardous substances such as lead and mercury. Lumen maintenance is based on IESNA TM-21 testing and manufacturer LM-80 data, guaranteeing long-term performance with an expected lumen depreciation of over 100,000 hours at 70% of initial output at 25°C. High-brightness, high-output white LEDs are offered in a nominal 4000K color temperature, with optional alternatives of 2700K, 3000K, 3500K, or 5000K, all maintaining a minimum 70 CRI. Custom CCT and CRI options are available upon consultation.
The luminaire’s electronic driver is UL recognized and securely mounted within the fixture for optimal performance and longevity. It features a quick-disconnect power connector for simplified installation and maintenance, DC voltage output, constant current operation, and protection against overload, overheat, and short circuits. Additional surge protection complies with IEEE/ANSI C62.41.2 guidelines. The driver operates at 50/60Hz with a total harmonic distortion of less than 20% and a power factor exceeding 0.9, and it supports 0-10V dimming for precise field control.
For enhanced visual control, the ML660 can be equipped with an optional Back Light Optical Control (BLOC) shield, providing internal house side shielding that significantly reduces backlight and glare while preserving the luminaire’s aesthetic. A fixed dimming resistor board (FDRB) is also available, featuring a numbered 10-step selector switch for field-adjustable light levels from 25% to 100%, with an enclosure sealed to protect components for the fixture’s lifetime. Photocontrol options include a body-mounted twist-lock style with cast aluminum shielding, enabling instant-on operation with a 3–6 second turn-off delay and activation at 1.5 footcandles, with turn-off at 2–3 footcandles, compatible with 120–277V.
The ML660’s finish is achieved through a 6-stage polyester powder coat system, ensuring a high-end, long-lasting surface that resists extreme environmental conditions. All parts undergo quality inspection prior to shipment, with the coating exceeding AAMA 2604, AAMA 2605, ASTM D523, and ASTM D4214 standards. The urban finish palette was specifically developed to convey a contemporary and elegant appearance, with textures or matte options in Black, Urban Gun Metal, Urban Bronze, Urban Silver, Urban White, and custom match possibilities.
Illumination is provided through individual refractor-type optics applied to each LED, producing symmetric Type 2, 3, 4, or 5 light distribution in accordance with IESNA classifications, verified via LM-79 testing. Overall, the ML660 medium post-top luminaire combines high-efficiency LED technology, advanced thermal management, customizable optical control, and a durable, aesthetically refined design to create a versatile and modern solution for urban and outdoor area lighting.
https://www.sternberglighting.com/products/41/ml660-medium-millenia-post-top
