... electronic ballast--Power factor above 0.97;CF below 1.7; THD below 10% ; Dimming range 5-100% ;High Temperature 70 Dimmable Electronic ... system, or use 0/1-10V dimmer to compose a small dimmable lighting systemSuit to T4,T5,T8 fluorescent tubes ... circular fluorescent tubesStartup more tubes: one, two, three, four piecesStartup by anyone dimmable spot, attune to the darkest energy-efficient reach ...