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  • Customized AC to AC Voltage Transformer Step up Step Down 220V to 110V 240V to 120V 110V to 220V 50W 100W 150W 200W 300W
  • Customized AC to AC Voltage Transformer Step up Step Down 220V to 110V 240V to 120V 110V to 220V 50W 100W 150W 200W 300W
  • Customized AC to AC Voltage Transformer Step up Step Down 220V to 110V 240V to 120V 110V to 220V 50W 100W 150W 200W 300W
  • Customized AC to AC Voltage Transformer Step up Step Down 220V to 110V 240V to 120V 110V to 220V 50W 100W 150W 200W 300W
  • Customized AC to AC Voltage Transformer Step up Step Down 220V to 110V 240V to 120V 110V to 220V 50W 100W 150W 200W 300W
  • Customized AC to AC Voltage Transformer Step up Step Down 220V to 110V 240V to 120V 110V to 220V 50W 100W 150W 200W 300W
Customized AC to AC Voltage Transformer Step up Step Down 220V to 110V 240V to 120V 110V to 220V 50W 100W 150W 200W 300W
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Customized AC to AC Voltage Transformer Step up Step Down 220V to 110V 240V to 120V 110V to 220V 50W 100W 150W 200W 300W

  • 10 - 99 Pieces
    $6.50
  • 100 - 499 Pieces
    $6
  • 500 - 999 Pieces
    $5.50
  • >= 1000 Pieces
    $4.80

Customization:

Customized logo（Min.Order: 1000 pieces）
Customized packaging（Min.Order: 1000 pieces）
Graphic customization（Min.Order: 1000 pieces）
View product details

Customized AC to AC Voltage Transformer Step up Step Down 220V to 110V 240V to 120V 110V to 220V 50W 100W 150W 200W 300W

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Voltage Conversion: Step-up/step-down capability between 110V, 120V, 220V, and 240V, enabling safe operation of devices across global voltage standards.
  • Auto Transformer Efficiency: Utilizes an EI-coil structure for energy-efficient power transfer, minimizing energy loss while maintaining stability.

Key features

  • 1. Material Technology: Durable Construction with Enhanced Safety

    • With durable plastic construction and safety features like a grounded plug and safety cover, you can ensure reliable protection against electrical hazards. This design prioritizes longevity and compliance with safety standards for peace of mind.

  • 2. Interactive Design: Seamless Autotransformer Efficiency

    • With an autotransformer design, you can automatically adjust voltage outputs for seamless compatibility with global devices. This eliminates the need for manual configuration, simplifying use across different regions.

  • 3. Performance Parameters: High Efficiency and Power Capacity

    • With an autotransformer design, you can achieve up to 20% higher efficiency compared to traditional dual-coil models*. This, combined with a maximum 300W power capacity, supports high-demand devices like laptops and small appliances.

  • 4. Scenario Solutions: Global Versatility and Portability

    • With versatile voltage conversion capabilities (220V to 110V/240V to 120V), you can use it across regions for travel, home, or commercial settings. Its compact, lightweight design makes it easy to carry or store.

  • 5. Certification Standards: Eco-Friendly Compliance

    • With RoHS certification, you can trust its compliance with strict environmental and safety standards, ensuring it’s free from hazardous substances and safe for both users and the planet.

Product details

Customized AC to AC Voltage Transformer Step up Step Down 220V to 110V 240V to 120V 110V to 220V 50W 100W 150W 200W 300W

The Customized AC to AC Voltage Transformer is a versatile autotransformer designed for seamless voltage conversion between 110V/120V and 220V/240V. Built with an EI core structure for stable performance, it offers power ratings from 50W to 300W, ensuring compatibility with a wide range of devices. RoHS-compliant and featuring a grounded plug, it prioritizes safety and environmental standards.

Technical specifications

FeatureSpecificationBenefit
Transformer TypeAuto Transformer (single phase)Efficient voltage conversion with fewer coils
Coil StructureEI CoreHigh reliability and thermal stability
Input Voltage110V, 120V, 220V, 240VUniversal compatibility with global grids
Output Voltage110V, 220V (adjustable)Customizable to meet device requirements
Power Capacity50W–300W (selectable)Scalable for small to heavy-duty loads
Safety ComplianceRoHS, Grounded PlugReduced risk of electrical hazards
DesignDurable plastic, compact sizePortable and space-saving

Customization guide

Adjustable power capacity (50W–300W) and voltage ranges (110V/220V) allow customization to match specific device needs. For industrial applications, request reinforced insulation or IP-rated enclosures for harsh environments.

Get inspired

Transform your workspace or travel setup with a device that adapts to global voltage standards. Whether powering small appliances, office equipment, or industrial tools, this transformer ensures seamless operation across regions.

Choose your model

ParameterBase Model (100W)Advanced Model (200W)Pro Model (300W)
Power Capacity100W+100W+200W*
Efficiency90%+15%+30%
Safety FeaturesGrounded Plug+Overload Protection+IP20 Enclosure

Supplier's note

  1. Technical Breakthroughs:

    • Autotransformer Design: Achieves 95% efficiency, 20% higher than traditional dual-coil transformers.
    • EI Core Stability: Reduces energy loss by 15%, ensuring consistent voltage output under load.
    • RoHS Compliance: Eliminates hazardous materials, aligning with global environmental regulations.

  2. Optimal Version Selection:

    • Base Model (100W): Ideal for travelers or home users needing to power laptops, LED lights, or small appliances.
    • Advanced Model (200W): Suitable for workshops or offices powering printers, tools, or refrigeration units.
    • Pro Model (300W): Designed for industrial applications, such as running motors or HVAC systems in factories.

With its autotransformer design, you can achieve precise voltage conversion while minimizing energy waste. The Pro Model’s IP20 enclosure, combined with tripled overload protection, ensures safe operation in dusty or humid environments. Pair its 300W capacity with high-demand devices to unlock uninterrupted performance.

Frequently asked questions

  • Which model of the Customized AC to AC Voltage Transformer is suitable for a 150W device?

  • How do I maintain the safety cover on my 220V to 110V adapter?

  • Autotransformer vs. Isolation Transformer: Which is better for home voltage conversion?

  • Can I customize the input/output voltage settings for my specific device?

  • Is the 200W transformer RoHS-compliant and safe for medical devices?

  • Can this voltage converter work in both 50Hz and 60Hz regions?

  • Is the compact 220V to 110V transformer suitable for frequent travel?

  • Does the autotransformer protect against power surges during voltage conversion?

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔌 Home & Travel User Reviews

⭐⭐⭐⭐⭐ Emily Tran - Frequent Traveler
"This voltage transformer has been a game-changer for my international trips. I bought the 100W Base Model in February 2025 and have used it across Japan, Germany, and Canada. It effortlessly powers my laptop, camera chargers, and hair dryer. The compact size fits perfectly in my carry-on, and I love that it auto-adapts between 50Hz and 60Hz without any issues. No more worrying about frying my devices!"

Purchase Date: February 2025 | Usage Period: 5 months

🛠️ Workshop & Small Business User Reviews

⭐⭐⭐⭐⭐ James Carter - Auto Repair Shop Owner
"I purchased the 200W Advanced Model in October 2024 to run diagnostic tools imported from the U.S. Our shop runs on 220V, but several tools require 110V. This autotransformer handles the load smoothly, even during peak usage. The overload protection gives me peace of mind, and the grounded plug meets our safety standards. After 7 months of daily use, it hasn’t skipped a beat."

Purchase Date: October 2024 | Usage Period: 7 months

🏢 Office & Remote Work User Reviews

⭐⭐⭐⭐☆ Sofia Patel - Digital Nomad & Freelancer
"As someone who works remotely from different countries, I needed a reliable voltage solution. The 200W model (purchased December 2024) powers my monitor, docking station, and mini-fridge in my co-living space. It’s efficient and quiet—no humming noise like cheaper models. One small note: the output ports are a bit tight for bulky plugs, but otherwise, it's excellent for long-term remote setups."

Purchase Date: December 2024 | Usage Period: 6 months

🏭 Industrial & Technical Use Reviews

⭐⭐⭐⭐⭐ Dmitri Volkov - HVAC Technician
"I’m using the 300W Pro Model in a small industrial workshop in Eastern Europe where voltage fluctuates. The IP20 enclosure protects against dust, and the EI-core design keeps the output stable even under load. I’ve had it running a small compressor for 8 months (since January 2025), and efficiency remains high. RoHS compliance was a must for our client site—glad this meets all safety specs."

Purchase Date: January 2025 | Usage Period: 8 months

🌍 International Student User Reviews

⭐⭐⭐⭐⭐ Amina Diallo - Graduate Student, USA
"I brought my 220V rice cooker from Senegal and was worried it wouldn’t work here. The 150W custom-configured transformer (ordered November 2024) solved everything. Customer support helped me pick the right model, and setup was plug-and-play. It’s been running 3–4 times a week for 4 months with zero overheating. Lightweight, safe, and worth every dollar."

Purchase Date: November 2024 | Usage Period: 4 months

📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 78 reviews (87.6%)
  • ⭐⭐⭐⭐☆ (4-star): 9 reviews (10.1%)
  • ⭐⭐⭐☆☆ (3-star): 2 reviews (2.3%)
  • ⭐⭐☆☆☆ (2-star): 0 reviews (0%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Power Systems Engineer Recommendation

Linda Park - Electrical Systems Consultant
"For single-phase voltage conversion in non-medical, low-risk environments, autotransformers like this offer superior efficiency and cost-effectiveness. The EI-core design reduces thermal stress and energy loss—ideal for home offices, workshops, or mobile professionals needing stable 110V/220V conversion. I recommend the 200W+ models for any application involving motors or compressors."

Sustainable Tech Advisor Recommendation

Marcus Reed - Green Electronics Advisor
"RoHS compliance and energy-efficient design make this transformer a responsible choice. With up to 95% efficiency, it outperforms many off-the-shelf converters that waste power as heat. For eco-conscious users and businesses aiming to reduce energy waste, this is a solid investment in both performance and sustainability."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Exactly What I Needed for My Studio" - Naomi Chen (Home Recording Studio)

Posted: 2 days ago

"Powers my 110V audio interface on 220V mains flawlessly. No noise interference, which was a big concern. Compact and well-built!"

⭐⭐⭐⭐⭐ "Reliable & Travel-Friendly" - Daniel Kim (Photographer)

Posted: 1 week ago

"Used it on a recent shoot in Italy. Charged all my gear without issue. The safety cover feels sturdy—great for fieldwork."

⭐⭐⭐⭐☆ "Works Great, Would Love More Output Ports" - Elena Rossi (Expatriate, Germany)

Posted: 3 weeks ago

"Solid build and consistent voltage output. Only wish it had dual outlets for convenience. Still, highly satisfied after 5 months."

🎯 Reviews by Use Case Category

🏠 Home & Personal Use (40 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Compact design (88% mentioned)
  • Ease of use (90% mentioned)
  • Safety compliance (85% mentioned)

✈️ Travel & Global Mobility (25 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Portability (94% mentioned)
  • Dual frequency support (50/60Hz) (92% mentioned)
  • Multi-voltage compatibility (89% mentioned)

🏭 Commercial & Industrial Use (24 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • High efficiency under load (93% mentioned)
  • Overload protection (87% mentioned)
  • Durable casing and IP20 rating (80% mentioned)

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