节能型电感镇流器的技术特性，对镇流器的技术要求，传统型镇流器与节能型镇流器的比较，镇流器自身能耗比较，节能镇流器的理论依据，环型镇流器的技术优势，时间预置型多灯节能器-The technical characteristics of energy-efficient magnetic ballasts, the ballast of the technical requirements, comparison of conventional ballasts with energy-saving ballast, ballast energy consumption comparison, the theoretical basis of the energy-saving ballasts, ring the technological advantages of the ballast, the time preset multi-lamp energy saving