... -up/down transformer step-up/down transformer220V-110V110V-220Vpower:50va,100va,200va,300va,500va,1kva up to 10KVAthe fixed type step-up/down transformer is an ideal AC step-up/down ... up it from 110V to 220V effectively,with advanges of no waveform distortion,elegant appearance,ease of use,effective operation for a ...