<ul><li>SPECIFICATIONOutput voltage: 110V, product name: power transformer, voltage regulation speed: <1 second (when the input voltage changes by 10%), product capacity: 4KVA/5KVA/7.5KVA/10KVA Overload protection: fuse or overload protection switch , Frequency: 50Hz/60Hz, Insulation Class: Class B, Working Temperature: -5C~+40C, Temperature Rise Protection: Yes, Current: 9A.</li><li>SAFE AND LARGE CAPACITY- Maximum capacity up to 10000W, heavy duty step-up/step-down transformer (110V220V) CE certified, metal case, full range fuse protection. Full range overcurrent protection.</li><li>NOTE- Convert 110 volts to 220 volts: Make sure the device you plug in is using less power than the transformer is rated for. Note: Our transformer must be 2.5 times the power of the buyer's equipment for normal use.</li><li>HOW TO USE- Insert the voltage tap plug (located on the back of the transformer) into the pair of holes marked "110". Plug the power cord of the transformer into a 110 volt power source. When the power switch is turned on, the voltage on the receptacle marked "220" on the front panel will change to 220 volts.</li><li>EXCELLENT INTEGRITY STOREWe are high-quality and honest sellers, and we will help you solve all problems. We are committed to provide best service for every customer.Please rest assured to purchase!</li></ul> Note On the back of the machine,Input selection in the upper row. Need toconnect the POWER wire BY YOURSELF. Output voltage: 110V Product name: power transformer Voltage regulation speed: <1 second (when the input voltage changes 10%) Product capacity: 4KVA /5KVA /7.5KVA /10KVA overload protection: fuse or overload protection switch Frequency: 50Hz/60Hz Insulation class: Class B Warranty: 18 months Working temperature: -5C~+40C Temperature rise protection: Yes Current: 9A To convert 110 volts to 220 volts: Make sure the appliance to be plugged in uses fewer watts than the transformer's rating. Insert the voltage tap plug (located on the rear of the transformer) into the pair of holes marked "110". Plug the transformer's power cord into a source of 110 volts. 220 volts will be available at the front panel outlet marked "220" volts when the power switch is turned on. To convert 220 volts to 110 volts: Make sure the appliance to be plugged in uses fewer watts than the transformer's rating. Insert the voltage tap plug (located on the rear of the transformer) into the pair of holes corresponding to the local voltage standard . Check carefully to be sure no error has been made. The power of our transformer must be 2.5 times larger than the buyer's appliance to be used normally.

ST-10000 110V to 220V Step Up/Down Transformer Voltage Converter 10000W Step Up/Down Circuit Breaker Protection CE Certified Perfect Voltage Transformer Power Converter