The Yinleader 500W Voltage Transformer Power Converter is a reliable power conversion device that can convert AC to AC, with a maximum frequency of 60 Hz. It has a current conversion capacity of 9 Amps and a power source of corded electric. This step-down-step-up converter is designed for both 110V to 220V and 220V to 110V conversion, making it versatile for various electrical needs. Manufactured by ShenZhenShiYinHangZheKeJiYouXianGongSi in China, this transformer is compact with dimensions of 6.9 x 4.3 x 3.2 inches and weighs 5 pounds, making it a convenient and durable option for businesses and industrial applications.