This Converter Can Be Used With Any Household Appliance That Works On 110v(American Voltage) And Converts It To 220v (Indian Voltage) So That All Imported Appliances Can Be Used In India What is a step down transformer: is one whose secondary voltage is less than its primary voltage. It is designed to reduce the voltage from the primary winding to the secondary winding. This kind of transformer “steps down” the voltage applied to it. As a step-down unit, the transformer converts high-voltage, low-current power into low-voltage, high-current power. The larger-gauge wire used in the secondary winding is necessary due to the increase in current. The primary winding, which doesn’t have to conduct as much current, may be made of smaller-gauge wire. This Converter Can Be Used For All Appliance Consuming A Max Energy Of 20 Watt only.voltage converter 220v to 110v