I don't want to ask to stupid a question, but I have built an electronic ballast to drive two F32T8 lamps and have a what seems to be a great design, but I am now wondering how to go about getting the voltage specs for other lamps to be able to "tune" this ballast for other lamps such as T5 lamps. Is there a chart or some other reference that I am not aware of that would tell what kind of run voltages these lamps would like? The ballast has a PFC controlled supply and a PWM output section, so current is very easily controlled as well as voltage. In order to tailor this to other lamps I need to know run voltages for the other lamps, this will allow me to tune the resonant circuit at the output of the half bridge I am driving the lamps with.