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

The efficient dimmable electronic ballasts, adjusted by the rectifier filter circuit, high frequency inverter circuit, power circuit and filament preheating circuit. Ballast power factor regulator capable of producing high power factor and low harmonic rate. The present invention also given an electronic ballast power regulation circuit, low power switch tube fever, so dimmable electronic ballasts commercialization. The electronic ballast also proposes a filament preheating circuit, this circuit does not have a thermistor as fever and can not continuously start the shortcomings of the preheating.