Profile: GoHz Inc offers solid state pure sine wave frequency converters, and variable frequency drives. Frequency Converter, also named as AC power source, is a electronic device to convert fixed frequency (50 hertz, 60 hertz), fixed voltage (110V, 120V, 208V, 220V, 230V, 240V, 380V, 400V, 440V, 480V etc) to variable frequency (50/60Hz or 400Hz adjustable) and variable voltage (adjustable) with pure sine wave output to compatible with international power system. We supply both single phase & three phase static (solid state) frequency converters, and built-in step up transformer.