Lighting has historically been designed for visual tasks. This is based on the amount of light entering the eye stimulating 2 photoreceptors, the rods and cones. The discovery of a 3rd photoreceptor, the intrinsically photosensitive Retinal Ganglion Cells or ipRGC has added a new dimension and requirement for lighting designers. Lighting is not only about vision; it is also about human performance, productivity and safety.

Peruse the research we find relevant to today’s lighting designs. Give us a call or send an email if you want to learn more or understand how lighting plays a role in the evolutionary design of our physiological response.

Please check back in from time to time for updates or to read our blog.

Nursing Homes Lighting Research

Residents in nursing homes seldom get outside, particularly in the north. Our body clock or circadian rhythm is set every morning by a specific spectrum of light. If that specific spectrum is not in the lighting of the nursing home, the clock is seldom or never set. Getting the right light in nursing homes improves the health and well-being of residents.  

Review the published research

Healthcare Lighting Research

Patients, physicians, dentists and staff can all benefit from new lighting beyond energy efficiency. Often times, visual diagnosis is a primary method in treatment. Getting lighting color right to reflect the proper color from the patient’s skin is critical. It can also enhance mood, putting patients more at ease, and help with the circadian clock for the patients who may be spending more time in extended care.

Review the published research

Schools Lighting Research

Schools are rapidly installing lighting for energy efficiency. Unfortunately, most of them are missing the boat on improving student performance based on the effect light spectrum has on human performance. Reading speed, comprehension, mood, etc., can all be positively influenced based on the color of the photon entering the pupil. 

Review the published research

Commercial & Government Lighting Research

Office, museum, industrial, warehouse, and similar facilities all have the same need for proper lighting as schools. Energy efficiency is a given, getting light right for the occupants to improve visual acuity, productivity and alertness can be easily achieved with today’s light sources.

Review the published research

Other Lighting Research

Light sets the internal body clock, however flying across multiple time zones confuses the body clock. How does air travel affect airline crew, professional football or baseball athletes? I think of the Milwaukee Brewers playing in the World Series against the LA Dodgers in LA. The game went into extra innings and ended at midnight, which was 2 a.m. in Milwaukee. Do you think LA had the advantage based on body clock? 

Review the published research

On-Site Lighting Assessment

Request a lighting assessment and an EPL lighting professional will reach out to learn more about your lighting needs and answer your questions.

Our thorough, on-site lighting assessments include:

  • Complete facility lighting evaluation with room-by-room counts of existing lighting fixtures, light level readings and other detailed measurements
  • A lighting upgrade proposal based on the lighting needs for the work performed 
  • An Energy Savings Report
  • Available Financial Incentives/Rebates
  • PACE funding or leasing available

Interested in an LED Upgrade? Curious about Budget Numbers/Available Options?

Contact Sales at:
(608) 661-5555

Or, send us a message using this form: