to eliminate stroboscopic effects, e.g. feeding two lamps with different phases

Full Title

Circuit arrangements or apparatus for igniting or operating discharge lamps (structurally associated with the discharge lamps H01J61/54, H01J61/56) > Circuit arrangements > in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC > having no starting switch > for lamps not having an auxiliary starting electrode > for low-pressure lamps > to eliminate stroboscopic effects, e.g. feeding two lamps with different phases