China manufacturer of magnetic ballasts for metal halide flood lights & hps flood lights

Sodium lamps start to get through to several thousand volts, electronic ignitor the high-voltage pulse to get through the bulb, and then supply current through the ballast flows through the trigger and then flows through the bulb, lamp voltage and current characteristics similar to the diode, and even "negative impedance characteristics, if not the ballast bulb the voltage across the little freshman, current may be much larger power super lot to make the light bulb at the rated current run, we should string inductance core ballasts .