?Voltage transformer (110V to 220V, 220V to 110V)?We provide you a safe, dependable, stable, cost-effective easy solution to converting voltages from 110 volts up to 220 volts or from 220 volts down to 110 volts.?NOTE?The transformer is equipped with an US power cord, if used in other 220V-240V country you MUST need a plug adapter or local power cord. ?Multi-function?The Voltage Converter Transformer can use for both home use and commercial applications. Apply for many kinds of household electrical appliances.Some appliances, such as heating appliances, power tools, coffee maker, laser printers, require 2-4 times more watts at start up than the printed rated wattage. ?Note?Size: 866 (in), Weight 10 (lb).The transformer only converts the voltage, does not change the frequency hz, please make sure your appliance is compatible with 50/60hz before use. hair dryers and coffee makers are recommended to choose a transformer with more than 2 times power. ?Sockets?: 4 AC outputs, 2 US Standard Socket for 110-120V appliance(s) 2 Universal Sockets accept all types of plugs except the Big South African plug for 220-240V appliance(s).The transformer can be used in countries which voltage are 90V?125V or 180V?250V such as US, EUR, UK, JP and more. ?7x24hrs Continous Run?High efficiency toroidal transformer with stable output and low consumption.It has passed the Temperature Rise Test and IEC test report. ?Safe?Dual circuit breakers protective for each voltage that is safe operation.If you have any questions,please feel free to contact us.