1.Single phase 2.Input:0V,110V,220V 3.Output:100V,120V,140V,160V,180V,200V,220V 4.Long service life 5.For African market General features: Step up and down transformers are widely used as the control power supply, local lighting and power supply of indicating lamps as well as many other general electrical power supplies for electric appliances, etc. 1.Stocked in a wide variety of sizes 2.Derives ...