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MedMaster Downlights

Model #: M4DL4-NS
  • 4" sealed, recessed downlight with round or square aperture
  • Regressed or flush lensed trim
  • Conducted emissions controlled as per MIL-STD-461G
  • 530nm Green LED source provides increased visual acuity during specialized surgical procedures
  • 1% Dimming via 0-10V or DALI-2 control
Nursing Stations
Patient Rooms
Lens Type(s):.125" High-Impact Clear Acrylic
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

ElectricalNative green LED source with 530nm nominal peak wavelength. 120-277VAC or 347VAC, 50/60Hz electrical input with serviceable constant current driver (<20% THD, >0.90 PF). Minimum 85% driver efficiency. Standard 0-10V dimming with 1-100% range and dim-to-dark capabilities; 0.2mA maximum source current. Optional eldoLED ECOdrive DALI-2/LEDcode2 driver with 1-100% range.
HeatsinkDie-cast aluminum with external radial fins for natural convection.
ListingsLuminaire is certified to UL standards by Intertek Testing Laboratory for non-IC and Wet Location installations. IP64 and IP65 rating per IEC60598. NSF2 Splash/Non-Food Zone. Conducted emissions controlled as per MIL-STD-461G. Optional CCEA compliant.
OpticalRound or Square aperture. Diffused tempered-glass upper lens. No filtering elements employed. Flush lens trim options include a clear impact-resistant acrylic lens continuously sealed to the trim ring. Available with various reflector finishes. See 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 Frame18-gauge die-formed, corrosion-resistant steel. Vertically adjustable collar accommodates ceiling thicknesses up to 1.5", adjustable post-installation. Adjustable mounting bars for installation with wood and steel frame joists and T-grid ceiling systems spaced up to 24" on center. Quick-access junction box accessible post-installation from above and below ceiling. Includes (5) 1/2" knock-outs to allow straight conduit runs.
Trim/Housing SectionIP-rated housing section incorporates the heat sink, LED module, optics and lower trim. Configurable with an IP64-rated Regressed or Flush lens trim that is secured to the Rough-In frame with hidden torsion springs, and an IP65 Flush lens trim secured with three (Round) or four (Square) Phillips-head, captive fasteners. Closed-cell gasketing at ceiling flange. Anti-microbial finish standard on all exposed painted surfaces. See Trim Ordering Information for available options.
WarrantyLimited five (5) year LED warranty. 

This product is able to comply with the latest domestic preference legislation, such as the Buy American Act (BAA), Trade Agreement Act (TAA), Build America, Buy America Act (BABA), and others.


Product Documentation

Installation Files

Photometry (IES)