250W Heavy Duty Step Up & Down Voltage Converter Transformer 110V / 220V Voltage RegulatorOverload protection. Overheating protection. Short circuit protection. Efficient and smart. Precision voltage. Precise input voltage selection according to the country where it is being used. Suitable for Water dispenser, priter rice cooker, fan fax machine, air machine, computer. Select proper input voltage switch at the back of the? Transformer Connect the converter onto a power socket. Insert your appliance plug into the multi socket on the