This is a time of revolutionary change in the lighting industry. Solid-state lighting (SSL) systems are on track to achieve lighting efficacies for general lighting in excess of 150 lumens per watt (lm/W) in the not-too-distant future. This is double the typical performance of the ubiquitous linear fluorescent systems in use in commercial spaces today, and 10x the efficacy of the familiar incandescent light bulb, which many countries have regulated out of use in many applications in recent years. The total system performance could be further improved by the addition of smart controls, which include occupancy sensing and daylight harvesting, among other features.
Lighting quality is contextual, being a function of meeting the functions of the space (here expressed as individual well-being of people in buildings), while taking into account the economic and environmental context and the physical setting (here expressed as architectural considerations). Credit: (1).
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