Troffer Definition

trŏfər, trôfər
A ceiling recess like an inverted trough with its bottom next to the ceiling: used esp. to enclose fluorescent lamps.
Webster's New World

A rectangular, trough-shaped light fixture, typically for mounting in or on a ceiling to light the area below, and usually containing two or three fluorescent bulbs.

Each fluorescent troffer in the room contained three lamps and two ballasts.

Origin of Troffer

  • Alteration of trough

    From American Heritage Dictionary of the English Language, 5th Edition

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