Check the listing for details. International Diamond Series 200Watt Step Up & Down Transformer. Condition: Open box. Listed at 39.94 USD. This International Diamond Series 200Watt Step Up & Down Transformer is a heavy-duty voltage converter that can be used with a variety of electronic devices. It is designed to convert input voltage from both 120V and 240V to output voltage of 120V and 240V, making it highly versatile. The voltage conversion feature is step-up and down, which allows the user to easily switch between the two modes depending on their needs. In addition, this transformer is branded International and falls under the categories of Heavy-Duty Voltage Converters, Multipurpose Batteries & Power, and Consumer Electronics. It is a reliable and efficient transformer that will provide users with the necessary voltage conversion for their electronic devices. B1