CFLs flicker with a stroboscopic effect, I’ve heard they switch on and off 50 times per second. Do they cause medical problems such as epileptic-type fits, mental disturbances?
CFLs give a constant, flicker free, non-stroboscopic light. They operate at high frequency through their electronic controller at between 30,000-50,000 hertz (normal mains voltage cycles at just 50 hertz or cycles per second). A small number of cases have been reported by people who suffer from reactions to certain types of linear fluorescent lamps. In the majority of these cases, the lamps in question were used in offices, restaurants (in certain European countries) and in limited places in domestic households (such as kitchens and garages) and were almost certainly triggered by OLD technology which operated on a conventional (Copper-Iron) ballasts with a low frequency ( The above health related problems can be therefore be avoided if consumers opt for new technologies such as integrated energy savers (CFL) in households and other sources using high frequency drivers (e.g. linear fluorescents and HID) in other applications (such as offices, restaurants etc).
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