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Functionrecessed - standard, recessed - fire rated ceilings downlight

standard LED

ManufacturerCitizen COB

Apertureround 4, 5"


FootprintFOUR HI: 13.125" x 11.5", FIVE HI: 14.5" x 11.5"

Net WeightFOUR HI 10 lbs, FIVE HI: 11 lbs


  • Downlight.

  • Luminaire is powered by Citizen chip-on-board LEDs.

  • Produces an initial beamspread of either 31°, 40°, or 56°.

  • Precisely designed reflector minimizes aperture brightness and provides a shielding angle of 40°.

  • Plastic diffuser obscures LED from view from below. 

  • 'Twist and lock' internal reflector produces an initial beamspread. To change beamspreads in the field, internal reflectors are available as accessories. 

  • Zigbee controller optional, offering wireless management via audio devices, wall switches, occupancy sensors, photo sensors, building automation systems, and more, sold separately. Learn more.

  • Learn more about the luminaire's features and benefits.


Our Made in USA factory uses handcrafted and computerized techniques to transform steel, aluminum, and other metals into durable luminaires.

Spec Sheets

  • 4" aperture.

  •  For the 31° beamspread, all configurations (except 3600 lm (L36S) and 4000 lm (L40S)),  contribute toward earning points required for WELL™ certification.  Learn more.

Specification Sheet
Add to Fixture Schedule
  • 5" aperture.

  •   For the 31° beamspread, all configurations contribute toward earning points required for WELL™ certification.  Learn more.

Specification Sheet
Add to Fixture Schedule

Application Notes

  • Luminaire is CSA listed for Damp Location. Fixture is prewired with an insulation detecting thermal protector.
  • Luminaire is approved for eight #12 wire 90° C branch circuit wiring.
  • Removal of the external reflector allows access to the LED module and junction box.


FHczs2DL4-36S31D.ies; 3600L, 80 CRI, 31˚ reflector
FHczs2DL4-36S40D.ies; 3600L, 80 CRI, 40˚ reflector
FHczs2DL4-36S56D.ies; 3600L, 80 CRI, 56˚ reflector
FHczs2DL5-51S31D.ies; 5100L, 80 CRI, 31˚ reflector
FHczs2DL5-51S40D.ies; 5100L, 80 CRI, 40˚ reflector
FHczs2DL5-51S56D.ies; 5100L, 80 CRI, 56˚ reflector

Additional Options

  • An optional integral holder (DG) is available to permit the use of one of a number of Optical Accessories

  • Emergency battery pack.

  • Box housing construction for fire rated ceilings.

  • Plaster ring allows use of Trim Flush (-TF) reflector in sheetrock ceiling.

  • Extra 'twist and lock' reflectors available to change beamspreads after installation. 

  • See external reflector color swatches; consult spec sheet for availability. 

  • Painted white (WF) overlap flange, or custom color (CCF) overlap flange on special order.

  • Wireless audio control devices, wall switches, occupancy sensors, photo sensors, building automation systems, and more, sold separately. Learn more.

  • Specialty bars for wood joist and T-bar installations available.



Contact factory with quantity for pricing; orders may require shop drawing approval.

  • DOD: luminaire suitable for high humidity environments; add +DOD to Product Code.

  • +MAR: reflector suitable for marine environments; add +MAR to Product Code.

  • CONC-: May be suitable for poured-in-place concrete. Contact us for availability.

  • +2”CLG: May be suitable for installation in 2” thick ceiling material. Contact us for availability.

  • +EM: May be hard wired for emergency lighting. Contact us for availability.






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Comprehensive Brochure

See a concise overview of our entire collection.

Reflector Finishes

View reflector color finish options.

Luminaires for WELL™

Photos of our metals and materials in our NYC factory.