This lighting component is connected by the "IR receiver/sensor to the dimming ballast...[which]...provides the control to change the lamp's lumen output." (Richman, 2005)

Another lighting system introduced by Knisley is one that "features a manual override of automated fluorescent lighting settings through use of a wall-mounted control, an infrared handheld remote control device, or a PC workstation." (Knisley, 2005) This system is capable of implementing natural daylight where available which is known as "daylight harvesting" and a strategy which utilizes "ceiling-mounted photocells to measure the changing contribution of daylight and then compares this light level to an established level of light in a room. The controller responds by dimming or brightening the fluorescent lighting to sustain the desired level. The controller is compatible only with specific manufacturer's electronic fluorescent dimming ballasts." (Knisley, 2008) Knisley describes yet another system which combines "fixtures, user controls, and digital communications and as an alternative...
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