Biological advantages
Discharge lamps are worldwide most used lamp types for light sources in working environments.
The light flicker from these lamps on 50/60 Hertz operation from the mains is suspected to give people a rise to undue stress, especially in rooms without natural daylight.
This is investigated and studied at several institutes and universities to improve lighting systems with mainly low pressure, fluorescent type of lamps. According professor Rikard Küller (Lund Institute of Technology) the same results will apply for other type of discharge lamps with the same light modulation at 50Hz operation.
Positive effects of high frequency energized lamps and improved light levels in working areas can be improved efficiency and a safer environment.

