... 110V or step up it from 110V to 220V effectively, with advantages of no waveform distortion , high effici -ency, elegant appearance ... for imported electrical appliances. 2. Model and specification (HBD fixed type step-up/down transformer) Model(VA)Product size(cm)Package ... plug for your widely choosen: 4.Detailed picture: HBD fixed type Step up-down transformer,new type with Plug and socket