A troffer is a rectangular light fixture that fits into a modular

dropped ceiling A dropped ceiling is a secondary ceiling, hung below the main (structural) ceiling. It may also be referred to as a drop ceiling, T-bar ceiling, false ceiling, suspended ceiling, grid ceiling, drop in ceiling, drop out ceiling, or ceiling til ...

grid (i.e. 2' by 2' or 2' by 4'). Troffer fixtures have typically been designed to accommodate standard fluorescent lamps ( T12, T8, or T5), but are now often designed with integral

LED A light-emitting diode (LED) is a semiconductor Electronics, device that Light#Light sources, emits light when Electric current, current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy i ...

sources. Troffers are typically recessed sitting above the ceiling grid, but are also available in surface mount 'boxes'. Those with integral LEDs are often known instead as LED light panels. Abgehängte Decke

Use

The troffer is the most common type of light fixture for use in commercial office spaces, schools, and lab facilities.

Etymology

The word 'troffer' is a

portmanteau A portmanteau word, or portmanteau (, ) is a blend of wordscoffer A coffer (or coffering) in architecture is a series of sunken panels in the shape of a square, rectangle, or octagon in a ceiling, soffit or vault. A series of these sunken panels was often used as decoration for a ceiling or a vault, also c ...

References

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