Goldsource STU-500 AC 110V/220V 500W Step-up and Step-down AC Voltage Converter Transformer with 5V USB Port – Maximum Load Capacity: 500 Watts


Short Overview:

Step-up and step-down AC voltage transformer converts from 110V up to 220V or from 200/220/240V down to 110V, CE certified with fuse protection against short-circuit or overload.

About this item

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Made by one of the top manufacturers in the industry, the Goldsource STU-500 step up/down voltage transformer offers you a safe, reliable, affordable and convenient solution to converting voltages from 110 volts up to 220 volts or from 220-240 volts down to 110 volts for both home use and industrial applications. The STU-500 has a maximum load capacity of 500 watt, most suitable and cost-effective for devices such as game consoles, LCD TVs with screen size less than 55, desktop computers, and devices with the Maximum Power Consumption between 200 and 350 watts or 1/3-1/2 HP for motorized devices.

The STU-500 features a power cord with a standard US 3-prong plug. It has a total of 3 outputs, , one is 110 volts with a US standard outlet, another is 220 volts with a universal outlet, the last one is a 5V standard USB port for charging portable electronics device, all three outputs can be used simultaneously and continuously. Voltage Transformer Purchasing Guide:

Prior to purchasing a voltage transformer, in order to avoid users frustrations and unnecessary returns, it is extremely important to check and find out what your appliances Maximum Power Consumption (MPC) in watts is, which could be located on the devices nameplate or included in its user instruction. The appliances MPC must be less than this transformers Maximum Load Capacity (MLC), or it will NOT work. For safety concerns and optimal results, the manufacturer recommends that the transformers MLC should be equal or greater than your appliances 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.

Typically, an appliance with a heating element consumes more than 500 watts, these appliances include toaster ovens, coffee machines, space heaters, hair dryers and more, they will NOT work with this 500w transformer, please choose a model with higher MLC accordingly.

In addition, for an appliance that generates an in-rush current for a brief time to start from idle, such as a refrigerator, an air conditioner, or a laser printer, the in-rush current could be 3-7 times as much as what is required for normal operation. Please choose a voltage transformer with enough MLC to accommodate the power surge.

If you have any questions about whether a particular voltage transformer will work for your application or not, please feel free contact us by email or phone at 800-716-0100. Our business hours are from 9 AM 5 PM PST, M-F. (Major national holidays excluded)


Manufacturers 3-year limited warranty. Please contact us via email if you have any questions.

Recommended Use Travel
Recommended Location Indoors
Manufacturer Part Number STU-500
Color Black
Brand Goldsource
Assembled Product Weight 7.00 Pounds
Assembled Product Dimensions (L x W x H) 6.00 x 4.75 x 4.00 Inches