step-up & step-down transformer POWER:50VA,75VA,100VA,150VA200VA,250VA,300VA,350VA500VA,750VA,1000VA, ... ,3000VA,5000VA,7500VA,10000VA IntroductionThe fixed step-up & step-down transformer is an ideal step-up & step-down power. It can ... be operated easily. With such stated characteristics, it is suitable for imported electric devices. 110V-->220V220V-->110V