Quintessence square LED downlights are a benchmark in the field of recessed architectural lighting, offering exceptional visual comfort, high efficiency, and refined light quality. Designed for a broad range of interior applications, the Quintessence range includes downlights, lens wallwashers, and directional spotlights—all engineered with precision optics and a focus on minimizing glare while ensuring uniform, high-quality illumination. The system’s wide 90° beam angle, combined with a 40° cut-off, allows for generous luminaire spacing without compromising visual comfort or lighting performance, making it ideal for efficient general lighting strategies.
One of the defining features of the Quintessence series is its outstanding glare control, achieved through ERCO's innovative darklight reflector technology. This optical system not only maximizes the useful light output but also enhances visual comfort by precisely controlling light distribution, creating a discreet and pleasant lighting experience even in demanding environments. For wallwashing applications, the reflectors feature a broader 80° cut-off to ensure uniform vertical illumination, suitable for accentuating architectural surfaces and enhancing spatial perception.
Quintessence luminaires are particularly well-suited for office environments, including visual display unit (VDU) workstations. ERCO’s approach emphasizes application-specific glare control rather than relying solely on universal Unified Glare Rating (UGR) values. Instead of generalized standards, lighting comfort in offices is achieved through the careful placement and configuration of luminaires based on the actual layout of the space.
The system is available with both covered and flush mounting options to match different ceiling design requirements. By default, all recessed luminaires include an overlapping (covered) installation detail. For ceiling designs that demand a cleaner aesthetic, flush mounting frames are available as accessories and accommodate ceiling thicknesses between 12.5 and 25mm. Standard mounting allows for ceiling thicknesses from 1mm to 30mm, ensuring compatibility across a wide range of architectural conditions.
The optical components are equally refined. Downlights and wallwashers feature reflectors made from satin-matt anodized aluminum, providing durability and optimal light control. Directional luminaires utilize high-power LEDs paired with a collimating lens made of optical polymer to precisely shape the light. Available beam options include diffuser lenses for wide flood and extra wide flood distributions, as well as Spherolit lenses for narrow spot, spot, and flood beams—offering designers the flexibility to address diverse lighting tasks from general illumination to focused accent lighting.
Constructed with cast aluminum housings that serve as both a durable enclosure and efficient heat sink, Quintessence luminaires are engineered for long-term thermal management and performance. Directional versions offer mechanical adjustability, including 0°–20° tilt and 360° rotation. Both the tilt and rotation positions can be securely locked to maintain precise light directionality over time, an essential feature for focused displays or accent lighting in galleries, retail, and hospitality environments.
Control flexibility is built into the system, with options for switchable, phase dimmable, DALI dimmable, or Casambi Bluetooth wireless control. The phase dimmable versions support external trailing edge dimmers, allowing integration with a wide variety of lighting control infrastructures. This versatility ensures that Quintessence downlights can be seamlessly incorporated into both traditional and intelligent lighting systems, supporting everything from basic on/off control to sophisticated, scene-based programming.
With their clean square form factor, high-end optical design, and adaptable mounting and control options, Quintessence square LED downlights offer architects and lighting designers a powerful and elegant tool for achieving visually comfortable, efficient, and architecturally integrated lighting across a wide variety of interior spaces.
https://www.erco.com/en/products/indoor/recessed-luminaires/quintessence-square-3850/
