
Caroline Irving
Agents - USA
CIRCADIAN® is currently directly selling ZircLight fixtures through its offices in North America, Europe, Australia/New Zealand and Asia. In addition, we have agreements with the sales representatives organizations in North America listed below.
CONNECTICUT
Illuminate NE333 Pleasant Valley Road
South Windsor, CT 06074
https://illuminatene.com/eastern/
Phone: 860-282-0597
Fax: 860-282-0857
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DELAWARE
Penn Lighting Associates417 N 8th St – Suite #302
Philadelphia, PA 19123
https://www.pennlighting.com/
Phone: 215-735-5000
Fax: 215-735-5459
MASSACHUSETTS / MAINE / NEW HAMPSHIRE
Illuminate NE44 Sixth Road
Woburn, MA 01801
https://illuminatene.com/eastern/
Phone: 781-935-8500
Fax: 781-569-0051
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NEW JERSEY (Southern Counties Only)
Penn Lighting Associates
417 N 8th St – Suite #302
Philadelphia, PA 19123
https://www.pennlighting.com/
Phone: 215-735-5000
Fax: 215-735-5459
PENNSYLVANIA
Penn Lighting Associates417 N 8th St – Suite #302
Philadelphia, PA 19123
https://www.pennlighting.com/
Phone: 215-735-5000
Fax: 215-735-5459
RHODE ISLAND
Illuminate NE44 Sixth Road
Woburn, MA 01801
https://illuminatene.com/eastern/
Phone: 781-935-8500
Fax: 781-569-0051
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VERMONT
Illuminate NE44 Sixth Road
Woburn, MA 01801
https://illuminatene.com/eastern/
Phone: 781-935-8500
Fax: 781-569-0051
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Northern Texas / SE Oklahoma
Architectural Lighting Alliance (ALA)https://www.alatx.com/
101 Turtle Creek Blvd.
Dallas, TX 75207
214-658-9000
NW Louisiana
Architectural Lighting Alliance (ALA)https://www.alatx.com/
201 Milam Street Suite C
Shreveport, LA 71101
318-674-2713
NW Texas / E. New Mexico
Architectural Lighting Alliance (ALA) https://www.alatx.com/2028 82nd St, Unit 101
Lubbock, TX 79423
806-796-1322
Southern California
Western Lighting & Energy Controls https://westernlightingandenergycontrols.com/ 6630 Flanders Dr,San Diego, CA 92121
(858) 564-0233
IDAHO
The MH Companies2995 North Cole Road, Suite 115
Boise, ID 83704
Phone: 208-629-1757
www.themhcompanies.com
TENNESSEE / MISSISSIPPI / ALABAMA / FLORIDA / GEORGIA
SESCO Lighting222 West Maitland Boulevard Maitland,
Florida 32751
Phone: 407-629-6100
Fax: 407-629-6168
ILLINOIS
PG-Enlighten –500 Quail Ridge Drive Westmont,
Chicago, IL 60559
Phone: 847.228.1199
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www.pg-enlighten.com
Central Illinois
3623 N Woodridge Drive Decatur,IL 62526
Phone: 217-876-0238
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www.pg-enlighten.com
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www.pg-enlighten.com
INDIANA:
Northwest Indiana219.299.9305
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www.pg-enlighten.com
NEW JERSEY (Northern)
ILA Lighting & Controls253 State Route 79
North Morganville, NJ 07751
Phone: 732-566-5100
Fax: 732-566-5515
www.ilalighting.com/
NORTH AMERICA
evosite7240 Brittmoore Road Suite 100 Houston, TX 77041
Phone: 713-365-3900
https://www.evosite.com
COLORADO / WYOMING
The MH Companies1044 Speer Boulevard
Denver, CO 80204
Phone: 303-573-0222
www.themhcompanies.com
Western Louisiana Contact
Phone: 337-237-9130Martin Moore-Ede*,1 , Anneke Heitmann*,† and Rainer Guttkuhn† *Circadian Light Research Center, Circadian ZircLight, Inc., Stoneham, Massachusetts, † Data Analytics Department, Circadian Technologies, Inc., Stoneham, Massachusetts
Abstract
Electric light has enabled humans to conquer the night, but light exposure at night can disrupt the circadian timing system and is associated with a diverse range of health disorders. To provide adequate lighting for visual tasks without disrupting the human circadian timing system, a precise definition of circadian spectral sensitivity is required. Prior attempts to define the circadian spectral sensitivity curve have used short (≤90-min) monochromatic light exposures in dark-adapted human subjects or in vitro dark-adapted isolated retina or melanopsin. Several lines of evidence suggest that these dark-adapted circadian spectral sensitivity curves, in addition to 430- to 499-nm (blue) wavelength sensitivity, may include transient 400- to 429-nm (violet) and 500- to 560-nm (green) components mediated by cone- and rod-originated extrinsic inputs to intrinsi-cally photosensitive retinal ganglion cells (ipRGCs), which decay over the first 2 h of extended light exposure. To test the hypothesis that the human circadian spectral sensitivity in light-adapted conditions may have a nar-rower, predominantly blue, sensitivity, we used 12-h continuous exposures of light-adapted healthy human subjects to 6 polychromatic white light-emitting diode (LED) light sources with diverse spectral power distributions at recommended workplace levels of illumination (540 lux) to determine their effect on the area under curve of the overnight (2000–0800 h) salivary melatonin. We derived a narrow steady-state human Circadian Potency spectral sensitivity curve with a peak at 477 nm and a full-width half-maxi-mum of 438 to 493 nm. This light-adapted Circadian Potency spectral sensi-tivity permits the development of spectrally engineered LED light sources to minimize circadian disruption and address the health risks of light exposure at night in our 24/7 society, by alternating between daytime circadian stimu-latory white light spectra and nocturnal circadian protective white light spectra.
Download Published Research
Dr Martin Moore-Ede, a former professor at Harvard Medical School, and his biomedical engineering research team built this medical research center to identify and develop the optimal lighting for 24/7 operations. With funding from the National Institutes of Health and other supporters they designed and operated light-controlled medical research center with fully spectrally-controlled workplace and residential lighting, to study human volunteers living and working shifts around the clock.
As lighting with carefully controlled spectral content is delivered, a full range of physiological, psychological performance and medical tests are undertaken including
- Sleep and wakefulness with continuous EEG monitoring
- Blood tests (lipids, cardiac markers)
- Glucose Tolerance tests (Diabetes)
- 24-hour urine melatonin collection
- Salivary Melatonin 30-minute intervals
- Blood pressure
- Alertness & performance tests
- Mood and Depression scale test
Accomplishments
- Identification of narrow band of 440-490nm blue light which disrupts circadian clocks at night, and elucidation of the light-adapted circadian spectral sensitivity curve.
- Development of spectrally-engineered white light LEDs which remove critical blue wavelengths without causing yellow light.
- Testing of multiple light fixtures to determine which best optimize human health markers such as insulin resistance, melatonin levels and sleep
- Demonstration that blue depleted white light at workplace illumination levels can prevent the circadian disruption, melatonin suppression, excessive hunger and reduced vigilance caused by conventional blue-pump LEDs.
- Development and testing of control systems which track the natural sunrise and sunset across the seasons of the year, and keep interior lighting in-sync with the external environment
REVOLUTIONARY CIRCADIAN® HORSE LIGHTING SYSTEM
Optimizes Health, Well-Being and Athletic Performance of Your HorseTo provide the best environment for the health and well-being of horses, they need lighting designed to protect and strengthen their circadian rhythms. CIRCADIAN Light has created a uniquely effective spectrally engineered LED lighting technology that automatically provides the right light at the right time of day and night for your horse.
THE RIGHT LIGHT IS ESSENTIAL FOR OPTIMAL HEALTH & PERFOMANCE:
Light is the main synchronizer of the biological clock for all organisms on Earth… and horses are no exception. Research has confirmed that light entrains the circadian rhythms of horses and synchronizes them to their environment. In turn, providing the right light spectrum across the 24-hour day helps horses regulate and strengthen their:- Sleep cycles
- Feeding patterns
- Energy and Athleticism
- Reproductive cycles
- Hormone cycles
- Horses Need Blue-Rich Light During the Day - Blue-rich light during the day entrains and strengthens a horse’s circadian cycle. In turn, this boosts alertness and energy during the day and improves sleep at night.
- Horses Need Blue-Depleted Light After Sunset - Research has shown exposure to blue-rich light sources in the evening and at night disrupts the circadian rhythms of horses and suppresses melatonin. Circadian disruption interferes with equine sleep and reproductive cycles, as well as feeding patterns, and can lead to jet-lag symptoms which can impact performance.
LEARN MORE TO IMPROVE EQUINE HEALTH & PERFORMANCE Download Brochure
HEALTHY LIGHTING FOR OPTIMAL HEALTH, FITNESS, AND PERFORMANCE
Improving Alertness, Mood and Sense of Well-BeingGAIN THE COMPETITIVE EDGE IN FITNESS CENTERS
You get a great workout and still cannot sleep at nightOnce the sun sets, which can happen at 4pm on winter evenings, we become incredibly sensitive to the blue content of light. Most electric lights are rich in blue, and it only takes a little light in the evening to disrupt sleep and undermine all the benefits of the workout. And a fatigued jet-lagged customer is not motivated to come back.
The Key to Health and Fitness Lies in the Light Spectrum
Our eyes and bodies are incredibly sensitive to lighting levels and color, and this sensitivity varies across the 24-hour day. Both daylight and electric light is made up of a rich palate of violet, blue, green, yellow and red light which together combine to make white light. In the morning blue rich light wakes us up, and synchronizes our biological clock, but that same blue light in the evening disturbs sleep and creates a jet-lag feeling by disrupting our circadian rhythms.
BENEFITS OF CIRCADIAN LIGHTS FOR STAFF & MEMBERS
BENEFITS OF CIRCADIAN LIGHTS FOR MEMBERS:- Boost physical workout performance
- Improves alertness, mood and sense of well-being
- Promotes sleep at night and prevents circadian disruption
- Reduces the risk of injury or accidents
YOU AND YOUR STAFF:
- Key market differentiator for prospective members looking for a new fitness center
- Increases staff energy, performance and alertness
- Reduces employee turnover and absenteeism due to fatigue
LEARN MORE ABOUT CIRCADIAN LIGHTING FOR OPTIMAL HEALTH & FITNESS DOWNLOAD BROCHURE
Improve Health, Safety, and Well-Being of Residents & Staff
IMPROVE QUALITY OF LIFE FOR EVERY STAGE OF SENIOR LIVING
Lighting designed to boost circadian rhythms and health is the key to healthy senior living and can make your facility stand out in an increasingly competitive marketplace. Most elderly people are deprived of the right kind of light during the day and are exposed to the wrong kind of light at night. Spending time indoors under inadequate lighting, disrupts the circadian rhythms of elderly residents negatively impacting their appetite, energy and sleep. The result is depressed mood, increased agitation, chronic fatigue and increased risk of falls and injuries. Traditional fluorescent and LED lighting provides too little healthy light that mimics the benefits of daylight and provides too much blue content after sunset resulting in sundowning, sleep disruption and health disorders.
BENEFITS OF CIRCADIAN LIGHTS FOR STAFF & RESIDENTS
BENEFITS OF CIRCADIAN LIGHTS FOR
RESIDENTS:
- Minimizes stress, anxiety, and agitation
- Reduces circadian disruption with improved mood and sleep
- Improves emotional wellbeing and reduces fatigue related to falls and injuries
- Enhances quality of life for your senior living community
BENEFITS OF CIRCADIAN LIGHTS TO YOU AND YOUR STAFF:
- Key market differentiator for prospective residents looking for improved quality of life
- Increases staff energy, performance and alertness
- Reduces employee turnover and absenteeism due to fatigue
- Maintains natural circadian rhythms throughout the night
LEARN MORE ON HOW TO IMPROVE HEALTH, WELL-BEING, AND SAFETY AT YOUR FACILITY Download Brochure
Improve Health, Safety, and Well-Being of Patients & Staff
CREATE THE OPTIMAL HEALING ENVIRONMENT FOR EVERY STAGE OF PATIENT CARE
Lighting designed to boost circadian rhythms and health is the key to optimizing a higher quality healing environment in your healthcare facility. You can make your facility stand out in an increasingly competitive marketplace with Circadian Lights that improve health, wellbeing, safety and staff productivity. Most patients and healthcare staff are deprived of the right kind of light during the day and are exposed to the wrong kind of light at night. Spending time indoors under inadequate lighting, disrupts the circadian rhythms and negatively impacting appetite, energy and sleep. The result is chronic fatigue, depressed mood, and increased health risks of light at night. Healthcare Staff and patients are exposed to both traditional fluorescent and LED lighting which provides too little healthy light that mimics the benefits of daylight and provides too much blue content after sunset resulting in sundowning, sleep disruption and health disorders. See more about the evidenced-based science behind Circadian ZircLight. (Medical Science | Evidence Based)
BENEFITS OF CIRCADIAN LIGHTS FOR STAFF & PATIENTS
BENEFITS OF CIRCADIAN LIGHTS IN HEALTHCARE ENVIRONMENTS
FOR PATIENTS:
- Reduces circadian disruption with improved mood and sleep
- Improves mood and mental activity
- Strengthen hormone signaling
- Promote optimal healing environment
- Improves quality of care for patients
FOR HEALTHCARE STAFF:
- Increases staff energy, performance, and alertness
- Reduces employee turnover and absenteeism due to fatigue
- Decreases the health risks associated with blue light exposure at night
- Maintains natural circadian rhythms throughout the night
- Market Differentiator for your healthcare facility
LEARN MORE ON HOW TO IMPROVE HEALTH, WELL-BEING, AND SAFETY AT YOUR FACILITY
IMPROVE HEALTH, SAFETY, & PERFORMANCE IN YOUR WORKPLACE
Your company’s most valuable assets are the highly skilled employees running many critical areas of your organization. New standards like the American Petroleum Institute’s ANSI RP-755 recognize the importance of well-lit workplaces that prevent circadian disruption at night and the costly impact on an organization
To support key employees, your lighting systems should optimize safety, health, and productivity by minimizing circadian disruption. CIRCADIAN’S Zirc™ Technology
CIRCADIAN Zirc™ LED Technology:
- Addresses the Health Risk of Light at Night – There is substantial evidence about exposure to blue light at night and how it disrupts circadian rhythms, which trigger carcinogenic and metabolic processes and suppress health-protecting hormones like melatonin. In turn, causing fatigue-related errors, absenteeism, presenteeism and higher turn-over rates in your operations.
- Reduces the Cost of Circadian Disruption – The Jet-lag malaise that results from disrupted circadian rhythms resulting in low productivity and increased errors.
- Maximizes Alertness and Vigilance – Blue-boost during the morning and post- lunch combined with a blue-depleted light at night that maintains alertness, productivity, and reduction in errors.
- Light Training & Shiftwork Support Services – We can provide workforce training on managing fatigue, sleep and light with the installation as well as other shiftwork support services
YEAR ASSESSMENT OF CIRCADIAN LIGHTS IN THE WORKPLACE
- 50% Increase in employees alert and fresh at 5 am, the hardest time to stay awake on the night shift
- 67% Reduction in employees reporting frequent mistakes or errors in their safety-critical jobs
- 50% Reduction in employees with excessive sleepiness on the Epworth Scale, a standardized fatigue metric
- 33% Reduction in frequent nodding off/fighting sleep events
- 45% Reduction in average number of snacks eaten during the night shift
- 28% Reduction in employees who rank as obese or overweight by the Body Mass Index (BMI)
- 20% Reduction in employees with Gastrointenstinal Disorders
- 43% Reduction in frequent use of over the counter pain medications
Download Control Room Brochure Download 1-Year Case Study
CIRCADIAN® Zirc™ LED Technology
The evidence is in. Our brains and bodies require blue-rich light during the day and absence of blue light at night to promote health and well-being. The matched pair of Zirc™ DaySync™ and NightSafe™ LEDs for the first time provide an unparalleled 42-fold day-night contrast between blue emission at the peak effective 477 nm Circadian Potency wavelength. Not only does ZircLight™ provide a robust circadian entraining light solution, but with 124-143 lumens/watt delivered 24/7 there is no compromise in energy-efficiency to ensure climate change initiatives can be met.
In the natural world there is a strong circadian >100,000 fold contrast between 10,000 lux (cloudy day) and 0.1 lux (full moonlight). But unlike our ancestors we spend over 93% of our time indoors with conventional fluorescent and LED lighting which emits too little blue rich light during the day and far too much blue-rich light at night. Dozens of serious health disorders, from sleep disorders and fatigue, to obesity and diabetes, and even breast and prostate cancer have now been linked by the World Health Organization, American Medical Association and the NIH National Toxicology Program to the circadian disruption caused by the harmful effects of modern lighting.
Why is 477nm blue the peak circadian wavelength?
Billions of years ago when life first began, the only light that penetrated the ocean depths was ~477 nm blue. All other spectral colors in sunlight are absorbed by sea water, so days were blue and nights black. Circadian clocks evolved using 477 nm blue as the signal for day and night. New research now shows that our eyes, like the primitive oceans, use blue light from 438-493 nm with a peak wavelength of 477 nm as the steady state signal for circadian entrainment. While short exposures in dark adapted laboratory volunteers may show some transient effects of violet and green, the key circadian signal is 438-493 nm blue. Circadian ZircLight™ LED’s are spectrally engineered to adhere to this fundamental law of nature.
When you have to work in the evening or at night, you no longer need to dim the lights, or use ugly orange-yellow lighting, to avoid the harmful effects of blue-rich light at night. Spectrally engineered Zirc™ Day and Night light engines provide attractive energy efficient circadian healthy white light 24/7. Compared to 15-20% blue emissions of conventional LEDS, Zirc™ Night LEDs deliver only 1% of blue content, easily meeting the UL verification mark of “Less than 2% blue light at Night” And during the day ZircTM LEDs deliver more than 20% of blue content that has been critical to health since life began.
Alertness and productivity at night safely delivered
Light is energizing especially when it contains shorter wavelengths such as blue and violet. Some have suggested using blue rich light at night to prevent fatigue, but that risks circadian disruption and ill health. Zircs™ night LEDs elegantly solve this problem by providing safe violet content, which is more effective than blue at promoting alertness and preventing errors, and with the advantage that it does not disrupt our circadian clocks.
Matched Zirc™ White Light Day and Night LEDs
- 124-143 lumens/watt
- Each between 3250-4000 CCT
- Both CRI >80
- Zirc™ DaySync™ emits 42 times more Circadian Potent 477 nm blue than Zirc™ NightSafe™ LED
- More than 15-fold difference in total 438-493 nm blue emission
- Zirc™ NightSafe™ LED emits only <1.5% of visible energy in 443-493 nm blue Circadian potency band
- Exceeds the UL verification spec of <2% blue content at night