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Functionrecessed downlight


Apertureround 4"


Footprint18 1/4" x 11 5/8"

Net Weight14 lbs

AvailabilityShips In Weeks

Product Remarks

Arclite T4/4 is an efficient 4” aperture downlight designed for use with 20-watt, 39-watt or 70-watt T4.5, G8.5 base metal halide lamps. Fixture is equipped with an electronic ballast and a protective glass. Precise reflector design minimizes aperture brightness, with a shielding angle of 40°.

Application Notes

Fixture is CSA listed for Damp Location and suitable for use in a fire rated ceiling. Fixture is prewired with electronic ballast and thermal protector, and is approved for eight #12 wire 90°C branch circuit pull-through wiring. 

The standard top reflector setting produces a medium distribution; optional settings are available for narrow or wide distributions. Settings may also be changed after installation, without the use of tools.




ArcT4DL4MD.IES; medium distribution
ArcT4DL4ND.IES; narrow distribution
ArcT4DL4WD.IES; wide distribution

Additional Options

  • Arclite T4/4 accepts one or two of a number of Optical Accessories including lenses, color filters and a UV filter.

  • Narrow distribution (standard setting is medium distribution) 

  • Wide distribution (standard setting is medium distribution)

  • Emergency: DC bayonet base socket only

  • Auxiliary: DC bayonet base socket prewired to restrike relay;100 watt max lamp on 120 v service; 50 watt max on 277 v service



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

  •  CHP-: 20-watt fixture suitable for Chicago Plenum; add CHP- as prefix to Product Code.

  •  CONC-: 20-watt fixture suitable for poured-in-place concrete; add CONC- as prefix to Product Code.

  •  EXP-: `European-style´ install-from-below fixture; add EXP- as prefix to Product Code.

  • +2”CLG: fixture suitable for installation in 2” thick ceiling material; add +2”CLG to Product Code.

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

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

  •  +TR: fixture prepared for top re-lamping; add +TR to Product Code.