Advanced Step Up/Down Tech: Easily step up from 110 volts to 220 volts or step down from 220 volts to 110 volts with the input voltage switch. Switch our voltage converter transformer to the correct voltage before powering on. Includes a power cord Security Comes First: This step up down voltage transformer features dual protection: an air switch for overcurrent protection and a resettable circuit breaker for overload protection. Keeps your devices secure during operation 1000VA Voltage Converter Transformer: Includes four AC outputstwo standard US output socket and two EU output socket. For optimal results, choose a step up down power converter rated at least 40% higher than your devices total wattage Efficient & Quiet Operation: The quality toroidal coil reduces noise, heat, and weight, ensuring precise and stable voltage output