Selectable Watts means again with the flick of a switch, the user can set the wattage used and consequently the amount of illumination provided by the fixture. If the user thinks 5000 Kelvin is too white they can change the Kelvin for example to 3000 Kelvin with the flick of a switch. Selectable Kelvin troffers means using a simple switch, the user can select between multiple Kelvins. Now LED troffers have Selectable Watts and Selectable KelvinĪnother update for LED troffers is Selectable Watts and/or Selectable Kelvin, and many troffers feature both. Dimming technology makes them a natural choice for systems that have occupancy sensors, daylight harvesting, or are on central controls that dim down lights to reduce peak demand electricity charges. Many LED troffers can be configured with step dimming. Most LED troffers are dimmable with 0 – 10v dimming controls. LED troffers are adaptable to controls.įluorescent troffers were able to be outfitted with dimmable ballasts, but the technology was always kludgy and expensive. LED troffers are available in 1’ x 4’, 2’ x 2’, and 2’ x 4’. Another huge factor was the very high upfront cost. Color rendering was also lower than desired. Light quality was compromised by the use of Kelvin temperatures that were higher than most people wanted to work under. The light levels were not always sufficient. The first generation of LED troffers was decent, but had its issues. The troffer market is now dominated by LEDs. At Access Fixtures, sales of fluorescent troffer sales were once quite common. The DOE estimates that LED troffers increased in sales from 40,000 units in 2010 to nearly 700,000 units in 2012. Per the US Department of Energy (DOE), as of 2010, four out of five lamps in commercial buildings were fluorescent and most of the fluorescent lamps were installed in troffer luminaires, but the rapidly advancing technology of LEDs posed a challenge for fluorescent lamps. This blog is an update of a 2015 blog titled “ LED Challenges Fluorescent Lighting in Troffers ” and will attempt to answer this question: Have LED troffers become the default choice instead of fluorescent troffers, and if yes, why? Have LED troffers become the default choice instead of fluorescent troffers? Then again, if you found this blog by Googling troffers, you probably know what a troffer is and are looking to remodel your facility, to illuminate a new facility, or are wondering about the benefits of LEDs. Also referred to as flat panels, LED flat panels, and LED panel lights for LED versions, these are the ubiquitous light fixtures that fit into the metal grids next to the ceiling tiles in offices, retail stores, and almost everywhere else across America. Of course, 2’ x 2’ is not rectangular, but we hope Wikipedia understands. Wikipedia defines a troffer as “a rectangular light fixture that fits into 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 LEDs.
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