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

Self-oscillating electronicballasts fluorescent lamp preheat-start circuit, including fluorescent tubes, half-bridge driver circuit, in series in the fluorescent light tubes and ballast inductance between the half-bridge driver circuit and parallel in the fluorescent tubes at both ends of the filamentresonant capacitor, the resonant capacitor are connected in series by one end of the filament of the fluorescent lamp the ballast inductor, further comprising simultaneously in parallel with the resonant capacitor foam flat element between both ends of the filament in the fluorescent tube, the flat foam element consists of a straight-type electrodes different coefficients of expansion and a U-shaped double metal electrode consisting of a pair of sheet metal, the new fluorescent electronic ballast warm-up the start reliable to meet the lamp consistency and interchangeability.