• 300 watt max capacity
  • Grounded Transformer for Two Way Voltage Conversion - 110/120 volt to 220/240 volt and 220/240 volts to 110/120 volt
  • Built-in fuse protection system
  • Power on-off switch with led indicator
  • Can be used continuously
  • Operates on 110/120 60hz or 220/240 volt 50hz single phase and converts to and from 110/120/220/230/240 volt.Input voltage selector switch (110 or 220 volt)
  • Ideal for both electric and electronic products like computers, consumer electronics, appliances and testing equipment
  • 3 Outlets (receptacles) American style x 2, Asian/European style x 1
  • Euro/Asian style power cord
  • American style standard plug adapter included to plug this unit in the U.S.
  • CAUTION: Make sure the wattage and voltage of your appliance or equipment and the wattage of the transformer is suitable for each other, and the proper input voltage is selected on the back of the transformer according to the country of use before you connect the transformer and turn it ON. Failure to follow the instructions may result in damage to the transformer and the appliance.
Price: $39.95
  • 5% Off



These Heavy Duty power transformers are our top sellers and offer excellent quality and long life

Seven Star TC300 convenient step up/down transformer allows user to utilize 110VAC appliances in countries that have 220VAC power, and vice versa. Features a heavy-duty transformer for safety and reliability, on/off switch with indicator light, sturdy metal case and universal multiple-output receptacles (will accept European 2 pin round plug and North American 2 pin flat and 3 prong plug.) Safety features include built-in (non-detachable) power cord with strain relief, fused protection, safety polarized input switch and non-slip rubber feet. This TC series auto transformers are designed for continuous use with TVs, Audio/Video equipment and other electronic devices, kitchen and household appliances such as mixers, food processors, power tools, vacuum cleaners and many more.


  • Dimensions: L - 5.25" x W - 3.25" x H - 3" approx.
  • Weight: 7 lbs approx.
  • Model Name: Seven Star TC300
  • Additional Information

    For safety reasons, it is recommended to use a Voltage Converter / Transformer that's max watts is at least 50% higher than your appliance. For example, if your appliance is rated at 1000 watts, you need to buy a Transformer with a max power of at least 1500 watts or greater. Some appliances, such as heating appliances, power tools, motors, laser printers and TVs need a bigger "buffer zone" because they tend to spike in power, For safe operation it is advisable to choose a voltage converter that is twice the actual wattage rating of these appliances.

    How to find correct Voltage Converter

    To determine the right voltage converter for your appliance, first find out the voltage (110 or 220 Volt AC) and wattage rating (watts or amps) information on the back or bottom of the appliance or from instruction book of an appliance. If no watts are shown and only amps are shown, multiply the volts (input AC) by the amps to find the watts.

    For example,
    Volts (AC input) x Amps(amperage) = Watts (Wattage)
    110V x 0.5A = 55W


    Please note transformers are to be used with caution in any case. Keep away from moisture areas and children. We assume no responsibility for misused transformers. We can always recommend a certain size and model for any appliance or electronic that you have. Please contact us if you have any questions.

    What's in the Box

    • Seven Star TC300 Converter x 1
    • 3A Spare Fuses x 2
    • American Style Plug Adapter (Euro to U.S)