step-up & step-down transformer POWER:50VA,75VA,100VA,150VA200VA,250VA,300VA,350VA500VA,750VA,1000VA,1500VA2000VA,3000VA,5000VA,7500VA,10000VAIntroductionThe fixed step-up & step-down transformer is an ideal step-up & step-down power. It can, effectively, have the voltage drop from 200V to 110V or climb from 110V to 220V, with the wave not distorted. It possesses a beautiful outline and a rather ...