Light Management for Night Shift Adaptation

The GreenLIGHT System is the Optimal Tool to Enhance Nightwork Performance

lumber mill 1 Fatigue is increasingly recognized as a major problem in work places requiring night work. Maintaining alertness at night is crucial in environments where impaired judgment can put safety at risk. Working at night also adversely affects the health and well being of workers. The problems of working at night are related to the misalignment of workers' internal body clock with their activities. Night shift workers have to fight their bodies' tendency to sleep and repair itself while they are working, and then try to sleep during the day when the brain is alert and the cardiovascular system is up-regulated. Trials in the workplace have shown that Sunnex Biotechnologies low intensity GreenLIGHT System can be used in all manner of workplaces to align night workers' body clocks with their night work schedule and alleviate the problems caused by working at night.

Sunnex Biotechnologies GreenLIGHT System incorporates a patented low-intensity green visible light technology. While white light has often been used in research trials to demonstrate the benefits of aligning circadian rhythms with night work schedules, the brightness of white light needed to accomplish this, 5,000 to 10,000 lux, makes it impractical to use white light in real world workplaces. Additionally many workers find light of that brightness difficult to tolerate, and experts have expressed concern that repetitious exposure to visible light that bright can contribute to the development of age-related macular degeneration and blindness. Attempts to use moderate levels of white light, in the range of 1,000 - 2000 lux have been found to be not effective. Sunnex Biotechnologies patented a low-intensity green light technology (under 400 lux) that shifts human circadian rhythms to an equivalent extent as does 5,000 - 10,000 lux of white light.

The Canadian Defence Department's R&D Centre and the U.S. Air Force have jointly conducted several independent studies to select and test the optimal phototherapeutic device to improve performance in a night work adaptation program. These studies utilzed the expertise of a recognized authority on all aspects of light therapy, Dr. J Arendt of Surrey University. The original study, comparing the low intensity Sunnex Biotechnologies GreenLIGHT with higher intensity devices concluded: "The [Sunnex Biotechnologies] light tower was the best device, producing melatonin suppression and circadian phase change while relatively free of side effects." Subsequent studies by this group, published in a variety of peer reviewed journals, demonstrate the effectiveness of low intensity GreenLIGHT for controlling human circadian physoiology. See Studies with GreenLIGHT in the Workplace

GreenLIGHT lamps have also been used by Harvard University for the 105-Day Mars Mission collaboration with the European Space agency at the Russian Institute for Biomedical Problems. Dr. C.A. Czeisler, Head of the Department of Chronobiology of Harvard University, has stated in comments regarding a multi-year study for NASA with Sunnex Biotechnologies low-intensity GreenLight lamps, "In addition to benefits for NASA flight personnel this technology will also have application to shift-workers, to jet travelers, and to any personnel who need to shift the timing of their biological rhythms." For more on the use of GreenLIGHT lamps by Harvard University in studies for NASA and the National Space Biomedical Research Institute (NSBRI), see The use of GreenLIGHT lamps by Harvard University in studies for NASA and the NSBRI:

GreenLIGHT Technology in the U.S. Coast Guard's CEMS program as a Fatigue Countermeasure

GreenLIGHT in the Wheelhouse For several years the U.S. Coast Guard Research and Development Center tested the effectiveness of low intensity green light for suppressing melatonin and shifting circadian rhythms to align the internal body clock of night workers with their work schedule. Trials were conducted on operating Coast Guard cutters and commercial vessels with Sunnex Biotechnologies GreenLIGHT lamps, and the protocols for the Crew Endurance Management System (CEMS) were developed based on the results of these trials with GreenLIGHT lamps.

In collaboration with American Waterways Operators, the U.S. Coast Guard recommended the implementation of the CEMS program on commercial inland and coastal tow boats to counter accidents caused by fatigue during the night, as well as to improve the health and well being of crew members working at night. The objective of CEMS is to increase operational safety and crew alertness on commercial vessels operating on inland and coastal waterways. Because low intensity GreenLIGHT lamps are adaptable to most workplace envoironments, they are even being used in the wheelhouses of vessels operating on rivers at night to improve the alertness and performance of boat Captains driving these vessels at night.
For maritime vessel applications Click Here

The GreenLIGHT System is Suitable for Any Work Site and Flexible on the Job

lumber mill In today's 24-7 world alertness is essential for operating complex equipment, and judgments made in the control room can have a major impact on operational safety. An effective light management program can be very flexible and be implemented in a manner that does not interfere with workplace activities. Exposure need not be continuous, and effective lighting can be applied indirectly, without the need to look directly at the light source.

Whether in a lumber mill or in a nuclear power plant, Sunnex Biotechnologies light management with low intensity GreenLIGHT System can help provide a healthier and more productive work environment for night shift workers. As part of a night work counter-fatigue program, the GreenLIGHT System can be used to improve alertness and performance on the job, while countering the adverse health effects associated with night shift work.

The GreenLIGHT System is Safe for the Eyes

Sunnex Biotechnologies' GreenLIGHT System provides a low-intensity, non-UV light source that filters out the harmful wavelengths of visble light, the blue rays, contained in white and full-spectrum lighting. Blue light is the most hazardous form of visible light, causing oxidative damage in the retina and contributing to the development of age-related blindness. By eliminating the "blue light hazard", this low-intensity green light technology eliminates the risk of eye damage inherent from repetitious exposure to bright or blue light. The GreenLIGHT System is therefore suitable for all users, irrespective of age or ocular condition.

Sunnex Biotechnologies' GLS Eyewear: An Essential Part of the GreenLIGHT System

GLS eyewear The Sunnex Biotechnologies GreenLIGT System improves nighttime performance due to its effect on the internal body clock. In order to maintain the benefit of the nighttime exposure to the Sunnex green light, exposure to morning sunlight, which can counter-act the night time light exposure, must be minimized. Sunnex Biotechnologies has developed fashionable GLS Eyewear that can be incorporated into the GreenLIGHT System for workers who will be exposed to morning sunlight, either while on the job on while traveling home from work. This unique eyewear is an essential part of the GreenLIGHT System, blocking the opposing effect of morning sunlight while allowing normal activity and travel

GreenLIGHT System Custom Solutions

A variety of fixtures are available for the Sunnex Biotechnologies GreenLIGHT System. Since each individual workplace contains unique work environments and working conditions, we recommend that independent experts be consulted to help integrate this technology in your workplace. These experts should be familiar with Sunnex Biotechnologies patented technology and be able to integrate the GreenLIGHT System into a fatigue countermeasures program to improve workplace safety and the health and performance of night workers. The customized integration of GreenLIGHT System lighting and eyewear into your work environment is the final essential component of Sunnex Biotechnologies' Green-Light System.
To see a product list of GreenLIGHT fixtures Click Here


The Sunnex Biotechnologies GreenLIGHT System - made up of Green-Light Lighting Fixtures, GLS Eyewear, and Customized Integration into your workplace - is an essential element of your company's Fatigue Management Solution.

To learn how a GreenLIGHT System can be developed for your workplace, call us toll free at 1-877-7-SUNNEX (1-877-778-6639), or Contact Us