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Calculite 4 in LED New Construction Housing

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Calculite 4 inch LED New Construction Housing from Lightolier. The pre-installed telescoping mounting bars extend to 30" long and lock into position and attach to steel or wood joists without accessories. Vertical adjustment mechanism mounts to most ceiling systems using mounting bars or 1/2" EMT tubing. Single locking feature secures all adjustments. Alignment holes and markings allow fixture to be preset prior to installation. Mounting ring adjusts vertically from above or below ceilings up to 2".


  • Non-IC New Construction Housing, insulation must be at least 3" away from any part of the housing or luminaire.
  • Attaches to light engine via push-in connector (on frame).
  • Removable cover provides access.
  • 50,000 rated life.
  • 120V Encased Electronic Power Supply, provides overload and short circuit protection.
  • Equipped with thermal regulation to protect against overheating.
  • Dimmable with compatibal Low Voltage Electronic Dimmers (see specification tab for dimmer compatibility sheet).

Material(s): Galvanized Steel

Dimensions: 20" L X 9.4" W X 6.2" H

Lamp Type: LED

Listing: UL, CUL, IBEW

Manufacturer Specifications: Specifications Sheet 1, Specifications Sheet 2

Model(s): C4L10N1


Lightolier is a company with a rich history of growth and innovation. Founded in 1904, in the early days of electric lighting and by the 1920's, the company had published the first application-oriented "Stylebook" catalog. By the Second World War, Lightolier had built a reputation for design leadership in decorative lighting.

After the war, the company entered the architectural lighting market in a major way. Rapidly, Lightolier earned recognition for its sophisticated and sensitive designs. With its introduction of track lighting in the 1960's, the company became an important player in the fast growing store lighting market. Also in the 1960's the company began asserting its expertise in downlighting reflector technology. Lightolier figured importantly in the use of downlights in residential, as well as hospitality and entertainment spaces.

Throughout the 1970's, Lightolier pioneered high-performance fluorescent lighting, lighting systems for stores and office work spaces. Into the 1990's, Lightolier has concentrated on Energy Smart lighting and actively supports the development and adoption of good lighting.

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