The Good Fellows GFC-100 Step-Up & Step-Down Transformer is a compact and reliable voltage conversion device designed for safely operating electrical appliances with different voltage requirements. It provides a maximum power output of 100 watts, making it suitable for low-power electronic devices such as battery chargers, small audio equipment, shavers, radios, and other household appliances. The transformer converts 110V AC to 220V AC (step-up) and 220V AC to 110V AC (step-down), allowing equipment from different countries to be used with local power supplies. Built with a durable metal housing, it offers good heat dissipation and long-lasting performance. Its single-phase design ensures stable and efficient operation, while the compact size makes it easy to carry and store. This transformer is ideal for home, office, travel etc .