Canadian Defense Department's R&D Center Validates Low-Intensity Green Light Therapy Technology for Night Shift Work

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Sunnex Biotechnologies announces the Canadian Defense Department's R&D Center has determined that the Lo-LIGHT tower with its patented low-intensity GreenLIGHT technology is the best phototherapeutic (light therapy) device for light management in a night shift adaptation program. This study confirms the superiority of low-intensity Green LIGHT technology for light management in programs to improve the health and performance of night shift workers over other light therapy devices.

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tugboat crews are using the green light help them get acclimated and allow them to get the proper amount of uninterrupted sleep they need. They find the green light helps them the more that they use it.

Sunnex Biotechnologies is pleased to announce that a study comparing phototherapeutic (light therapy) devices by the Canadian Defense Department's Research and Development Center confirms the effectiveness and advantages of their patented low-intensity GreenLIGHT technology over high-intensity light therapy technologies. (Aviation, Space and Environmental Medicine, July 2007).

The study was designed to select the optimal light therapy device for ongoing research into the use of light management to improve operational performance during night shift operations. Defence Research and Development Canada (DRDC) compared the Sunnex Biotechnologies Lo-LIGHT tower with the FeelBright Lightâ„¢, experimental LED spectacles, and the Litebook®, a device that primarily emits blue light. The study concluded: "The (Lo-LIGHT) tower was the best device, producing melatonin suppression and circadian phase change while relatively free of side effects."

Improving Worker Performance and Health with Green Light Management

Murray Waldman, President of Sunnex Biotechnologies, explained "In today's 24-7 world, alertness is essential for operating complex equipment. Judgments made in a control room can have a major impact on operational safety. Light management is useful for improving the alertness and performance of night shift workers, while combating the health problems associated with night shift work. The study by DRDC demonstrates that the GreenLIGHT System is the most effective technology for bringing the benefits of light management into the work place."

GreenLIGHT and Light Management in the U.S. Coast Guard's CEMS Program

Waldman noted, "GreenLIGHT lamps were used to develop a light management protocol for the U.S. Coast Guard's Crew Endurance Management System (CEMS). The protocol was developed after years of trials on operational Coast Guard cutters and commercial vessels with GreenLIGHT lamps. These trials demonstrated the practicality of using this low-intensity Green Light technology in the workplace."

The CEMS program is in the process of being implemented by a number of commercial marine companies in the U.S. One customer, (Penn Maritime Inc.) reported in the September 2007 CEMS Newsletter, "tugboat crews are using the green light help them get acclimated and allow them to get the proper amount of uninterrupted sleep they need. They find the green light helps them the more that they use it." European marine companies are also beginning to examine the benefits of a CEMS program for coping with fatigue on the night shift. A Norwegian marine company, Eidesvik AS, has had success with the GreenLIGHT System on platform supply vessels, and is expanding the use of the GreenLIGHT System on its fleet.

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

The GreenLIGHT System is adaptable to any workplace environment. Waldman invites inquiries from companies wishing to improve night shift safety and performance, as well as the health of their night shift workers.


Sunnex Biotechnologies is a leader in lighting technology for combating the health and performance problems associated with working at night, as well as for the treatment of sleep and mood disorders. Their patented low-intensity green light technology(200-400 lux) is ideal for chronobiological interventions, comfortably providing the equivalent effect as 10,000 lux of bright light, yet adaptable to any environment. An important benefit of this low-intensity technology is that it does not expose the user to the risk of retinal damage, a problem inherent with the use of bright light, or blue light therapy devices. Sunnex Biotechnologies is based in Winnipeg, Canada.

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Murray Waldman
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