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

The electronic ballast, which is on the basis of the original circuit additional to reduce the harmonic distortion circuit and an abnormal state of the protection circuit, the former is implemented by a capacitor, resistor, diode network composed of the latter advantage in the resonant circuit chokeinduction coil coupled circle on the abnormal state signal feedback composed mainly by the switching transistor and double contact relay circuit; addition to use of the induction coil by 555 integrated circuit and relay networka preheat circuit, so that the electronic ballasts model has a reasonable structure, safe and reliable, high power factor, fluorescent lamp life can be extended.