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Content Description

Circadian-Effective LED Lighting for Day-Active People in Interior Environments, 2024
CEU: 0.1 | CEU Code: SL-EN-183202-0124

Spectrum Lighting Light is fundamental to life, and Earth's 24-hour light'dark cycle directly impacts our physiology and behavior. Indoors, reduced exposure to daylight and increased exposure to electric light after dark interfere with circadian rhythms. This course examines how circadian rhythms affect human performance, health, and well-being, the receptors in the eye that send visual and nonvisual responses to the brain, the action spectrum for circadian stimulus, and the metrics used to quantify circadian-stimulus light. Also presented are methods for applying circadian-effective lighting systems to satisfy the requirements of WELL Building Standard" v2, Light, Feature L03, Circadian Lighting Design. 60 minutes.

Learning Objectives

  • Discuss the relationship between Earth's 24-hour light'dark cycle and human circadian rhythms, outlining the positive health and performance outcomes associated with a long-term behavioral pattern of bright days filled with circadian-effective light followed by dark nights.
  • Explain the action spectrum for circadian entrainment and summarize the roles of intrinsically photosensitive retinal ganglion cells, rods, and cones in synchronizing circadian rhythms to the 24-hour day.
  • Recall the terms and metrics used to identify and quantify light as a non-image-forming circadian stimulus, as adopted by WELL v2".
  • Apply circadian-effective lighting to comply with WELL v2, Light, Feature L03, Circadian Lighting Design and positively impact the health and well-being of day-active building occupants.

Faculty BIO

Markus Earley is an award winning lighting designer and educator. Beginning at Howard Brandston Lighting Design in 1981, Earley was the first recipient of the Richard Kelly Memorial Scholarship in 1985. Mr. Earley has over 40 years of experience as a designer of lighting and has taught architectural lighting for over 20 combined years at the Pratt Institute, the Parsons School of Design, and, most recently, the Rhode Island School of Design. Earley designed the lighting education experiences at the Lightolier Tech Center in Fall River, MA, in the mid 1990s, before launching Earleylight, an architectural LD firm in Providence, RI, where he worked for 15 years. Markus joined Spectrum Lighting Inc., Fall River, MA, in 2013 and recently designed the Spectrum Lighting Tech Center lighting experience center, which is 100% LED and includes circadian-effective lighting. When not tinkering with light, he's likely to be outside, traversing gnarly mountain bike trails.

Referenced Codes & Standards with this Course

Format Year Publisher Type Title Annual Price
2024
ICC
Model Code
 $254.13
GROUPS
X