In addition to converting 220/230/240 volts to 110/120 volts and visa versa, these voltage regulator transformers will stabilize either 120 volts or 220 volts. What that means is they will provide stabilized 120 volts when the input is 120 as well as providing a constant stabilized 220 volts when the input is 220/230/240 volts. The input parameters for stabilization (regulation) of power are 80 volts G€“ 140 volts and 120 volts G€“ 240 volts. The output is stabilized to either 110 volts or 220 volts +/- 4%.

This step up / step down voltage regulator voltage converters have a time delay feature that reduces. Certain large appliances such as refrigerators, freezers, washing machines, etc. which contain motors and compressors can be damaged at start-up when used with standard step up / step down transformers. The manual adjusting time-delay feature of these ATVR voltage converters can help protect appliances that could be damaged by delaying or reducing the current temporarily to an acceptable level and increases gradually as the appliance starts up. It provides a type of surge and sag protection. These features can also help protect certain types of electronic equipment also.

Step Up and Down Transformer and Voltage Regulator (Stabilizer) with 5 Outlets