The 6-inch round MRI downlight incorporates batwing distribution optics to create uniform, wide-angled light across horizontal and vertical surfaces, achieving smooth edges and even coverage without hotspots or rings. The fixture features a 45° cutoff, open downlight functionality, and medium wide beam angles, with flush or regressed lens trim options for adaptable installation. Bounding Ray™ technology provides top-down flash control to minimize glare, while unitized optics attach mechanically to the lower reflector to maintain precise optical alignment. Batwing distribution with feathered edges ensures consistent horizontal and vertical illumination, and the fixture maintains a UGR of zero for nadir-directed installations with cutoffs equal to or less than 60° in compliance with CIE 117-1995 standards.
Performance capabilities include lumens ranging from 250 to 4,500, CSA and wet location certification, IP64 and IP65 ratings, and NSF2 Non-Food/Splash Zone compliance. Mainstream dynamic lighting functionality incorporates nTune tunable white and WarmDim control. The fixture is compatible with up to ten driver options from 0-10V to DMX, with nLight® wired or wireless network integration. An emergency battery backup is included. The lensed LED light engine is fully serviceable and upgradeable from below the ceiling, providing 70% lumen maintenance at 60,000 hours, 85 CRI typical (with 90+ CRI optional), and non-ferrous construction for MRI room compatibility. Remote-mount driver options enable installation outside the shielded MRI room, with each driver box capable of controlling up to six downlights.
The luminaire operates across a voltage range of 120 to 277 VAC at 50 or 60 Hz ±3 Hz, maintaining a power factor of 90% or greater. All drivers are ROHS-compliant, with >80% efficiency at full load across input voltages. Continuous dimming without perceivable stroboscopic flicker is possible from 100% down to 0.1% lumen output, with eldoLED drivers conforming to IEEE P1789 standards. The driver remains inaudible in environments up to 24 dB and stable under fluctuating voltage conditions. The luminaire housing is constructed of 16-gauge galvanized steel with preinstalled telescopic mounting bars extending from 20-1/4" to 27-1/2" and accommodates ceilings up to 1½" thick. Tool-less adjustments are possible post-installation, with internal components supported to withstand mechanical shock and vibration. Insulated ceilings require a 3" clearance on all sides unless otherwise noted. EMI filters support up to four fixtures per filter.
Trim and housing options include black, white, and anti-microbial finishes, with reflector finishes in semi-specular, matte diffuse, or specular. Mounting types include recessed apertures compatible with cone, corner wallwash, double wallwash, lensed, open, or single wallwash trims. The fixture supports various color temperatures ranging from 2700K to 5000K, static or tunable, and wattages of 23 and 28. LED testing conforms to LM-80 standards, with lumens measured per IESNA LM-79-08 in accredited laboratories. Lumen output remains within 30% of initial values over 60,000 hours, with color consistency maintained within 2.5 MacAdam ellipse across the lifecycle.
The fixture is CSA certified to meet U.S. and Canadian standards for wet locations and covered ceilings and is assembled in compliance with Buy America(n) Act and Build America Buy America regulations. Non-ferromagnetic construction and remote driver options make the luminaire suitable for MRI environments, combining safe materials, consistent optical performance, and flexible control with durable, field-serviceable components.
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