I'm currently running 2x400W magnetic ballasts (the two input kind, supply Voltage is 220) (using Mh bulbs right now) just wondered if I should have a capacitor in the circuit? all I have right now is a ballast and Ignitor and it works fine- Im just worried that the power factor is bad and costing me more $. Should I run a capacitor in the circuit to correct this? The circuit diagram on my ballasts only shows an ignitor and the ballast. tia
