It*is suitable for the use of television set,sound system,sound bar,home theater,radio and other small electrical appliances.
This step-up and down transformer is an ac voltage converting device. Using it to convert the multi-kind net voltage into general output under which all the electronic equipment are in safe operation.This step up and down transformer can convert 110v to 220v and vice versa. *500watts *built ~ in ac voltage selection *built ~ in 2 flat pin or 2 round pin socket *included a flat pin adaptor plug *fuse protection