A clinical study led by sleep researcher Dr. Dieter Kunz at the St. Hedwig hospital in Berlin has provided evidence that LUCTRA® lamps have a biological effect on the production of the hormone melatonin. LUCTRA® is the first workplace lamp for which such systematic evidence has been established.
The study was conducted in July and August 2014 with 16 participants. During the test period, the participants were each exposed on five evenings to one of five different lighting scenarios. The biological effectiveness of the lighting was measured on the basis of the melatonin content in their saliva. In medicine, the sleep hormone melatonin is currently recognised as the most reliable indicator of the influence of light on human beings. In addition to saliva samples, the participants gave assessments of the visual comfort of the various lighting scenarios.
The complete study is available for download: