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MedMaster Downlights

Model #: MRIDL4
  • 4" sealed, recessed downlight with round or square aperture
  • Designed for MRI applications with non-ferrous construction and RF-free electronics
  • Delivered lumens: 930 - 1,364 lm
  • 1% Dimming via 0-10V control
Application(s):MRI Imaging Suites
Lamp Type(s):LED
Size(s):4" Aperture
Specifications are subject to change without notice. Please consult your Kenall Customer Service for help with special requests at (800) 4 Kenall.

Technical Specifications

ElectricalLED array available in multiple CCT and CRI combinations with a maximum 3-step MacAdam variation allowance. See Trim Ordering Information for available options. Luminaire input 24VDC from remote-located, 120-240 VAC, high-power-factor power supply (see MRIPS-312, ordered separately). Standard 0-10V dimming with 1-100% range and dim-to-dark capabilities.
HeatsinkDie-cast aluminum with external radial fins for natural convection.
InstallationAll power and signal wiring must be in completely grounded aluminum conduit. Light engine and internal driver are replaceable post-installation. MRI room EMI filters required.
ListingsLuminaire is certified to UL standards by Intertek Testing Laboratory for IC and Wet Location installations. IP64 rating per IEC60598. NSF2 Splash/Non-Food Zone.
OpticalHigh-Efficiency mixing chamber design with regressed diffused tempered-glass lens producing uniform light output. Round or square aperture. Available with various reflector finishes. See Reflector Finish Ordering Information for available options.
PhotometricsPhotometry tested to the IESNA LM-79-08 standard by an ILAC/ISO17025 accredited laboratory.  For photometric information, go to
Rough-In FrameDie-formed aluminum construction. Vertically adjustable collar accommodates ceiling thicknesses up to 2", adjustable post-installation. Adjustable mounting bars for installation with wood and metal frame joists and T-grid ceiling systems spaced up to 24" on-center. Junction box accessible post-installation from above and below ceiling. (7) 1/2" knockouts.
Trim/Housing SectionIP-rated housing section incorporates the heat sink, LED module, optics and lower trim. Configurable with an IP64-rated Regressed lens trim that is secured to the Rough-In frame with hidden torsion springs. Anti-microbial finish standard on all exposed painted surfaces.
WarrantyOne-year SafeScan(TM) guarantee on EMI susceptibility. Five (5) year warranty against mechanical defects. Five (5) year warranty on LED lamps and power regulation components for defects resulting in a fixture lumen depreciation of 30% or greater. Warranty is void if all wiring is not shielded in continuously grounded aluminum conduit.

This product complies with the Buy American Act: manufactured in the United States with more than 50% of the component cost of US origin.


Product Documentation

Installation Files

Photometry (IES)