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Elektronisk ballast med innebygd effektspareanordning og med fotoelektrisk påslag av lamper av höytrykks kvikksölvdamp-, metalldamp- og natriumdamptype
DEVICE FOR OPTIMIZING THE GENERATION OF THE VISIBLE LIGHT GENERATED BY THE EFFECT OF THE INFLUENCE OF AN ELECTRIC FIELD (E) ON ULTRAVIOLET RADIATION AND THE APPLICATION OF THE DEVICE IN MERCURY STEAM LAMPS AND / OR IN FLUORESCENT TUBES