By Stan Walerczyk CLEP HCLP LC
This e-book is helping you are making reliable lights judgements and may be a really helpful hands-on software for somebody concerned with engineering, upkeep, paying for, specification, retrofits, remodels, and new building for inside or external lights functions. It provides very useful how one can continue and replace latest lights structures and the way to devise for the long run. Key issues contain LED lights, upkeep costs, Read more...
summary: This publication is helping you are making reliable lights judgements and should be a truly invaluable hands-on instrument for somebody concerned with engineering, upkeep, paying for, specification, retrofits, remodels, and new building for inside or external lighting fixtures purposes. It offers very useful how one can hold and replace present lighting fixtures platforms and the way to plot for the longer term. Key issues contain LED lights, upkeep expenditures, attaining low strength density, dangers of LED T8s, and human centric lights
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Additional info for Lighting & Controls: Transitioning to the Future
Sample text
15 BF high performance IS ballast consumes about 38W. Although LEDs are also available in 3500, 4100, 5000 and higher Kelvins, the S/P ratios could be quite different for the same CCT fluorescent lamps and LEDs. Even LEDs of the same CCT may have considerably different S/P ratios. Hopefully, the DOE will test LEDs in 2014, like it started testing fluorescent in 2013. EVEN THE BEST CHANGE SINCE SLICED BREAD Some people do not initially like the best change since sliced bread, no matter what it is, because they are used to the status quo; it can take a while them for make the internal adjustment with a change.
15 BF high performance IS ballast consumes about 73W. 00 BF high performance IS ballast consumes about 64W. 87 BF high performance IS ballast consumes about 54W. 77 BF high performance IS ballast consume about 48W. 15 BF high performance IS ballast consumes about 38W. Although LEDs are also available in 3500, 4100, 5000 and higher Kelvins, the S/P ratios could be quite different for the same CCT fluorescent lamps and LEDs. Even LEDs of the same CCT may have considerably different S/P ratios. Hopefully, the DOE will test LEDs in 2014, like it started testing fluorescent in 2013.
I do not understand this, because Spectrally Enhanced Lighting 27 most of the light designers like daylight, which is considered an average of 6500K. Maybe it is because cool white fluorescent has considerably less red content than warm white fluorescent, which does not have that much red anyway. Most retrofits done with at least 4100K (and often 5000K) have good customer satisfaction. High CCT LEDs could be developed with substantial R9, which is red content, and that may help many more people like, or at least accept, high CCT.
