Atrium double focus downlights are expertly engineered for high-ceilinged spaces, offering a refined lighting solution with precise beam control and superior visual comfort. These luminaires are ideal for auditoriums, cinemas, concert halls, and other large-volume environments where lighting performance and comfort are critical. The downlight lens systems are designed to produce narrow distributions for focused illumination or to function as wallwashers that deliver uniform vertical lighting, even when installed close to the wall. This makes them especially effective in multi-storey or tall architectural spaces, where traditional wallwashers would require impractical mounting distances. With Atrium double focus wallwashers, optimal results are achieved at a distance of just one-fifth the height of the room.
Visual comfort is a core attribute of the Atrium range. ERCO's specialized housing designs and precisely engineered optical components ensure enhanced visual comfort, making the luminaires ideal for demanding visual tasks. The black anti-glare cone minimizes reflections and enhances contrast, making it suitable for dark or dramatic interiors, while the silver anti-glare cone blends elegantly into bright ceilings for a seamless aesthetic. For sloped ceilings, a recessed version is available that accommodates tilt angles up to 30°, ensuring that the light beam remains accurately directed regardless of ceiling inclination. The ability to lock both the tilt and rotation angles provides additional installation stability and precision.
All Atrium recessed luminaires come with a standard covered mounting detail, ensuring a clean integration into the ceiling. For applications requiring flush ceiling finishes, optional mounting rings are available that support ceiling thicknesses from 12.5mm to 25mm. The mounting system is compatible with ceiling thicknesses of 1–25mm for sizes 3–4 and 1–30mm for sizes 5–10. The mounting components are crafted from durable polymer in white for a discreet and professional finish.
The lighting engine of the Atrium double focus luminaires is powered by high-power LEDs with a choice of warm white (2700K or 3000K) or neutral white (3500K or 4000K) color temperatures. The optical system features ERCO's Spherolit lenses, which provide highly controlled light distributions in flood, wide flood, or wallwash formats. A collimating lens made of optical polymer further shapes the beam for maximum precision and uniformity. These components are optimized for delivering consistent light performance and excellent uniformity, especially for vertical illumination, meeting the strictest lighting design standards.
The anti-glare system is thoughtfully designed to support a 40° optical cut-off, with options for black or matte silver coated cones. In versions for sloping ceilings, the anti-glare ring is manufactured from cast aluminum or polymer with an external white and internal black finish, ensuring both functionality and visual harmony with the ceiling environment.
Atrium luminaires are supported by robust, cast aluminum housings that function as efficient heat sinks. These housings can rotate 360° and tilt from 0° to 30°, depending on the ceiling configuration. The tilt and rotation positions can be securely locked to maintain the desired lighting direction and minimize maintenance adjustments over time.
To accommodate a range of control preferences, Atrium downlights are available with multiple control gear options: switchable, phase dimmable, DALI dimmable, or wirelessly controlled via Casambi Bluetooth. The phase dimmable versions support trailing edge dimming with external dimmers, offering flexible compatibility with existing dimming infrastructures. With in-house developed control gear, ERCO ensures consistent operating behavior across groups of luminaires, with smooth dimming performance down to 1%—an essential feature for venues where lighting transitions must be subtle and precisely coordinated.
https://www.erco.com/en/products/indoor/recessed-luminaires/atrium-double-focus-5746/
