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December 14, 2025
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Seven Star ST-500, 500 Watts Step Up and Down Voltage Converter Transformer
$43.95
- The ST-series has an LED Indicator light on the front of the unit displaying when the unit is on and the electricity is being converted. This useful feature also adds a level of security so you know when your equipment is being powered. Key
- Step up and down Voltage Converter / Transformer
- Input: 110V/120V or 220V/230V/240V (Single Phase)
- Output 110V/120V or 220V/230V/240V (Single Phase)
- Input Selection in the rear of the converter
- Two outlets for output in the
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $43.95 $42.61 $40.84 $39.95 -
Seven Star ST-5000 Voltage Transformer Converter Step Up / Down 5000 Watts 110/220V
Original price was: $196.99.$179.99Current price is: $179.99.
- 5000 Watt Maximum Capacity Voltage Converter Transformer
- Dual Step Up or Step Down functionality
- Very High Capacity Shock-Proof Socket
- Heavy duty for continuous use.
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $179.99 $174.52 $167.25 $163.61 -
Seven Star ST-750, 750 Watts Step Up and Down Voltage Converter Transformer
$49.95
- Turn your ST- Step up/step down converter on quickly and easily with the simple flip of the power switch. Simply select the desired voltage in the back of the unit then use the power switch to turn your unit on and off. If you need to Step up to 10 volts, push the voltage selector towards the 110 Volt side. If you need to Step down to 220 Volts, simply
- Step up and down Voltage Converter / Transformer
- Input: 110V/120V or 220V/230V/240V (Single Phase)
- Output 110V/120V or
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $49.95 $48.43 $46.41 $45.40 -
Seven Star TC-100, 100 Watts Step Up and Down Voltage Converter Transformer 110-220 Volts
$29.95
Seven Star TC-100, 100 Watts Step Up and Down Voltage Converter Transformer 110-220 VoltsQuantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $29.95 $29.04 $27.83 $27.22 -
Seven Star TC-1000, 1000 Watts Step Up and Down Voltage Converter Transformer 110-220 Volts
$79.95
Seven Star TC-1000, 1000 Watts Step Up and Down Voltage Converter Transformer 110-220 Volts
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $79.95 $77.52 $74.29 $72.67 -
Seven Star TC-1500, 1500 Watts Step Up and Down Voltage Converter Transformer 110-220 Volts
$109.99
Seven Star TC-1500, 1500 Watts Step Up and Down Voltage Converter Transformer 110-220 Volts
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $109.99 $106.65 $102.20 $99.98 -
Seven Star TC-200, 200 Watts Step Up and Down Voltage Converter Transformer 110-220 Volts
$32.99
Seven Star TC-200, 200 Watts Step Up and Down Voltage Converter Transformer 110-220 Volts
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $32.99 $31.99 $30.65 $29.99 -
Seven Star TC-2000, 2000 Watts Step Up and Down Voltage Converter Transformer 110-220 Volts
$109.99
Seven Star TC-2000, 2000 Watts Step Up and Down Voltage Converter Transformer 110-220 Volts
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $109.99 $106.65 $102.20 $99.98 -
SEVEN STAR TC-300, 300 Watts Step Up and Down Voltage Converter Transformer 110-220 Volts
$39.95
Step Up and Down Transformers
Power Converter
Changes 220/240 Volt (Foreign Electricity) to 110/120 Volt (U.S. Electricity)
Also can change 110/120 Volt (U.S. Electricity) to 220/240 Volt (Foreign Electricity)
Fuse Protection with replaceable fuse (Comes with two extra fuses!!!)
Front easy access on/off switch
All models operate in dual voltage mode
Input jack for American Plug
Input jack for European Plug also
AcQuantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $39.95 $38.74 $37.12 $36.31 -
Seven Star TC-3000, 3000 Watts Step Up and Down Voltage Converter Transformer 110-220 Volts
$129.95
Seven Star TC-3000, 3000 Watts Step Up and Down Voltage Converter Transformer 110-220 Volts
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $129.95 $126.00 $120.75 $118.12 -
Seven Star TC-500, 500 Watts Step Up and Down Voltage Converter Transformer 110-220 Volts
$39.95
Step Up and Down Transformers All of the TC-series Step Up/Step Down Transformers offer fuse protection against any overloading or overheating that may occur. This Step Up/Step Down converter ensures your equipment remains safe when too much power builds up. Each Tc-series transformer unit includes two extra fuses. Additional sets of fuses, available in each wattage, are also soldseparately in packs of 3. With a simple easy fuse replacement, this step down converter keeps your equipment
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $39.95 $38.74 $37.12 $36.31 -
Seven Star THG-100 100 Watts Step Up / Down Voltage Transformer Converter 110/220V
Original price was: $31.99.$29.99Current price is: $29.99.
- 100 Watt Maximum Capacity Voltage Converter Transformer
- Dual Step Up or Step Down functionality
- Heavy duty, ventilated design for continuous use
- Fuse protected.
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $29.99 $29.08 $27.87 $27.26 -
Seven Star THG-10000 10,000 Watt Step Up / Down Voltage Transformer Converter 110/220V
Original price was: $441.99.$429.99Current price is: $429.99.
- 10,000 Watt Maximum Capacity Voltage Converter Transformer
- Dual Step Up or Step Down functionality, Compatible with 50Hz/60Hz.
- Durable Design with 2 Heavy-Duty Carrying Handles.
- Heavy duty for continuous use.
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $429.99 $416.92 $399.55 $390.86 -
Seven Star THG-1500 1500 Watts Step Up / Down Voltage Transformer Converter 110/220V
Original price was: $73.99.$70.99Current price is: $70.99.
- 1500 Watt Maximum Capacity Heavy-Duty Voltage Converter / Transformer
- Dual Step Up or Step Down functionality
- Heavy duty, ventilated design for continuous use
- Fuse protected.
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $70.99 $68.83 $65.96 $64.53 -
Seven Star THG-15000 – 15,000W Heavy-Duty Step Up/Down Voltage Converter Transformer
Original price was: $840.99.$599.99Current price is: $599.99.
Heavy-duty 15,000W Seven Star step up/down voltage transformer for safe and continuous voltage conversion between 110V and 220V. Durable and reliable.
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $599.99 $581.75 $557.51 $545.39 -
Seven Star THG-200 200 Watts Step Up / Down Voltage Transformer Converter 110/220V
Original price was: $36.44.$34.99Current price is: $34.99.
- 200 Watt Maximum Capacity Voltage Converter Transformer
- Dual Step Up or Step Down functionality
- Heavy duty for continuous use, ventilated design for continuous use
- Fuse protected.
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $34.99 $33.93 $32.51 $31.81 -
Seven Star THG-2000 2000 Watts Step Up / Down Voltage Transformer Converter 110/220V
Original price was: $106.99.$102.99Current price is: $102.99.
- 2000 Watt Maximum Capacity Heavy-Duty Voltage Converter / Transformer
- Dual Step Up or Step Down functionality
- Heavy duty, ventilated design for continuous use
- Fuse protected.
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $102.99 $99.86 $95.70 $93.62 -
Seven Star THG-20000 | 20,000W Step Up & Down Voltage Converter Transformer (110V ↔ 220V)
Original price was: $874.99.$799.99Current price is: $799.99.
The Seven Star THG-20000 is a heavy-duty 20,000-watt step up & step down voltage converter designed for industrial, commercial, and residential use. It safely converts 110/120V to 220/240V or 220/240V to 110/120V, making it ideal for running appliances and equipment from different countries.
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $799.99 $775.67 $743.35 $727.19 -
Seven Star THG-300 300 Watts Step Up / Down Voltage Transformer Converter 110/220V
Original price was: $42.69.$39.99Current price is: $39.99.
- 300 Watt Maximum Capacity Voltage Converter Transformer
- Dual Step Up or Step Down functionality
- Heavy duty, ventilated design for continuous use
- Fuse protected.
300 Watts Step Up / Down Voltage Transformer Converter 110/220V
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $39.99 $38.77 $37.16 $36.35 -
Seven Star THG-3000 3000 Watts Step Up / Down Voltage Transformer Converter 110/220V
Original price was: $126.99.$115.99Current price is: $115.99.
- 3000 Watt Maximum Capacity Voltage Converter Transformer
- Dual Step Up or Step Down functionality
- Heavy duty, ventilated design for continuous use
- Fuse protected.
Quantity Based Discount Pricing
Minimum 1 pcs. Minimum 3 pcs. Minimum 6 pcs. Minimum 11 pcs. $115.99 $112.46 $107.78 $105.43
