Fangrui Product Details Specifications: Input Voltage: 110/220v/ac Selectable Output Voltage: 110/220 V/ac,5v/dc Usb Dimension:30*22*15cm Weight: 8.5kg Net Weight: About 7kg Power Cord Length: 3 Ft Whats In The Box: 3000w Voltage Transformer The Voltage Transformers Offer You A Safe,reliable,affordable & Convenient Solution To Converting Voltages From 110 Volts Up To 220volts Or From 220 Volts Down To 110 Volts For Both Home Use & Industrial Applications. The Machine Is Rated At 3,000 Watts Maximum.there Are A Total Of Five Outputs On The Front Panel. Four Are Grounded Outputs,two Designated For 110 Volts With A Us Standard Outlet,the Other Two For 220 Volts Only With A Universal Outlet. The Last One Is A 5v Standard Usb Jack. And Most Importantly,all Five Outputs Can Be Used Simultaneously & Continuously. Note For Safety,its Recommended By The Manufacturer That The Voltage Transformers Maximum Power Should Be Equal Or Greater Than The Power Rating Of Your Appliance Multiplied By 1.5. For Example,if You Have An Appliance Rated At 100 Watts,you Will Need To Pick A Transformer With A Maximum Power Of 150 Watts Or Greater. When Shopping,please Pay Attention To The Size And Dimensions Of The Product To Ensure That It Meets Your Needs. In The Title And ,we Have Provided Detailed Information About The Product,including Its Features And Specifications We Want You To Be Completely Satisfied With Your Purchase,so If You Have Any Questions Or Concerns,please Don''t Hesitate To Contact Us. We Are Here To Help And Will Do Our To Assist You. Thank You For Choosing Our Product. We Hope You Enjoy It!