Visicomm is your source for a broad range of frequency changer instruments or converters from1KVA to 5000KVA in both rotary and solid state designs. The 60hz to 50hz solid state converter is used for testing products to be exported and for operating imported plant equipment designed for 50hz. The 50hz to 60hz power models are used overseas to test products destined for use in the US or other 60Hz countries and to operate 60hz machinery from a 50hz power utility. The 50/60 hz to 400hz frequency changer is for use in aerospace applications. For fast service from California to Florida, contact 1-866-221-3131 for a guided tour to the information you need on frequency changer instruments.