Dimmable electronic ballast--Power factor above 0.97;CF below 1. ... small dimmable lighting systemSuit to T4,T5,T8 fluorescent tubes, PL,PH tubes, and T5,T6 circular ... fluorescent tubesStartup more tubes: one, two, three, four ... power outputUse IC to control circuit, frequency conversion preheat start, the nice starting characteristic effectively prevent tube melanism and ...