4-Inch Universal New Construction Downlight with BIOS SkyBlue™ Lighting Technology


  • Specification Grade Round 16 Gauge Galvanized Steel New Construction Housing with Die-Cast Aluminum Heat Sink
  • Requires minimum 3-inch clearance around Housing from insulation material; thermal protection provided in case of improper insulation use
  • BIOS SkyBlue™ Circadian Lighting Technology brings the benefits of blue skies inside by emulating the makeup of nature’s light spectrum
  • BIOS LEDs provide high daytime stimulus by pin-pointing the peak sensitivity of the ‘sky blue’ visible light spectrum wavelengths, approx. 490nm, needed to effectively communicate and trigger circadian response
  • All R4 Downlights are available for non-dimming and dimming applications; for compatible Dimmers, refer to the Dimming Specification Sheet
  • Flanged or Trimless Specification Grade Trims; See “Trims for 4 Inch BIOS LED Recessed Downlights” Specification Sheet for compatible trim information and details
  • Trimless options require use of a Mud Frame (MF4, ordered separately); cannot be used with Remodel Housings (R4RM) or Slope Ceiling Adapters (RSA4L Series)
  • Optional Emergency Battery Pack with Remote Test Switch
  • UL8750 and Class 2 Compliant; RoHS Compliant, US only
  • Select Model/Trim Options are eligible for SpeedShip
RoHS Compliant: Yes

Product Information

  • Product Features

    Color Rendering Index : 80-89|90-100

    Correlated Color Temperature : 2700K|3000K|3500K|4000K

    Listings : cCSAus Certified|Damp Location|Wet Location|cCSAus Certified to UL924 Standard|ENERGY STAR® Certified

    Lumen Output : 1001-1500|1501-2000|2001-3000|3001-4000|4001-5000

    Product Shape : Round

    Housing : New Construction

    Aperture Size : 4 in