Webtroffer troffer (English)Noun troffer (pl. troffers). 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.; 1956, National Research Council , Design for environment: floor, ceilings, and … WebJun 8, 2024 · In 2024, LED troffer fixtures and troffer retrofit kits deliver over 40% higher efficacy than fluorescent – roughly 110 lm/W for LED compared to 75 lm/W for fluorescent. This dramatic difference in efficacy plus a light source with a longer rated life and, in most cases, lumen output that provides an acceptable replacement for fluorescent ...

How do you change a troffer light? - Lsleds

A troffer is a rectangular light fixture that fits into a modular dropped ceiling 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 sources. Troffers are typically recessed sitting above the ceiling grid, but are also available in surface mount 'boxes'. Those with inte… WebTroffer Name Meaning. Historically, surnames evolved as a way to sort people into groups - by occupation, place of origin, clan affiliation, patronage, parentage, adoption, and even physical characteristics (like red hair). Many of the modern surnames in the dictionary can be traced back to Britain and Ireland. goodwill pittsburgh locations

1x4 LED Troffer Light Fixture - Warehouse Lighting

Webnoun troffer a trough-shaped reflector holding one or more fluorescent lamps. 1; noun troffer an electric light fixture shaped like a shallow inverted trough, which holds in place … WebNov 10, 2012 · 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.[1] Each fluorescent troffer in the room contained three lamps and two ballasts. [2] 1956, National Research Council, Design for environment: floor, ceilings, and service systems in multi ... goodwill pittsburgh computer store