Certified Material Testing Products provides a wide-range of quality voltage step up/step down transformers and converters to meet a variety of application and needs. 

A voltage converter can be used in 110 volt countries and 220 volt countries. It converts from 220-240 volt to 110-120 volt and from 110-120 volt to 220-240 volt.

These step up/step down transformers come with a 1-year parts and labor warranty.