... electronic ballast--Power factor above 0.97;CF below 1.7; THD below 10% ; Dimming range 5-100% ;High Temperature 70 Dimmable Electronic ... systemSuit to T4,T5,T8 fluorescent tubes, PL,PH tubes, and T5,T6 circular fluorescent tubesStartup more tubes: one, two, three, four ... , suitable for different light fixturePlastic box white shell,two-way mounting hole,the lightweight and tidy shell,suitable ...