Goldsource STU-500W Voltage Transformer Converter: AC 110V/220V Step-Up/Down Power Converter with 5V USB Output, 500 Watt

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About this product

About Our Product Made by one of the leading manufacturers in the industry, the STU-500 heavy duty step-up and step-down AC voltage transformer offers a safe, cost-effective and easy solution to convert from 110-120V up to 220-240V or from 220-240V down to 110-120V at 50Hz or 60 Hz for both home use and commercial applications. The product has 3 outputs: a 110VAC US standard outlet, a 220VAC Universal outlet, and a 5V DC standard USB outlet, all three outputs can be used simultaneously and continuously. The transformer is equipped with fuse and circuit protection and comes with 2 spare fuses. A grounded European Schuko plug adapter are also included for use in Europe and Asia. All STU-500 transformers are CE certified and come with 3-year manufacturer’s limited warranty. Voltage Transformer Purchasing Guide: Prior to purchasing a voltage transformer, in order to avoid users’ frustrations and unnecessary returns, it is imperative to check and verify your appliance’s Maximum Power Consumption (MPC), which could be located on the device’s nameplate or included in its user instruction. The appliance’s MPC must be less than this transformer’s Maximum Load Capacity (MLC), or it will NOT work. For safety concerns and optimal results, the manufacturer recommends that the transformer’s MLC should be equal or greater than your appliance’s MPC multiplied by 1.5. For example, if you have an appliance rated at 100 watts, you will need to choose a transformer with a maximum power of 150 watts or greater. Heating appliances, laser printers and power tools spike when you turn them On. For these products you need to buy a Voltage Converter Transformer that is at least 3 to 4 times the rated wattage.