SHJY-300VA
SUNSHUN
NH31
| Availability: | |
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| Quantity: | |
Product Advantage

300VA STEP-DOWN VOLTAGE CONVERTER
220V to 110V
Perfect for using US appliances in 220V regions
A market-proven success since day one. This 300W converter has been perfected over years of testing and improvements, guaranteeing outstanding stability and reliable performance for your devices
PRODUCT FEATURES
![]() | Stable 110v output (Safe and Reliable) |
![]() | Multiple Safety Protection (Built-in protection for peace of mind) |
![]() | High Efficiency (Low energy loss, more durable) |
![]() | Flame Retardant Material (Safer and more heat-resistant) |

Safely use your 110V electronics in 220V regions with this voltage converter. It is ideal for powering a wide range of small appliances, including:
![]() | Hair styling tools (curling irons, straighteners) |
![]() | Breast pumps & Baby bottle warmers |
![]() | Mini vacuums & Robot vacuums |
![]() | Small humidifiers |
![]() | CD players & Game consoles |
Simply plug in and convert 220V to 110V with ease.
Versatile Applications for Every Need
Home Appliances
Perfect for converting voltage for everyday household electronics, such as kitchen gadgets, small fans, and other 110V home essentials.
Office Equipment
Ideal for powering office electronics like printers, scanners, and desktop computers in 220V regions.
Beauty & Hair Tools
Safely use your favorite 110V hair dryers, curling irons, and straighteners without worrying about voltage damage.
Lighting Solutions
Compatible with various 110V lighting fixtures, ensuring your lamps and decorative lights work perfectly anywhere.

Avoid costly accidents
When using 110V appliances in 220V areas, pairing them with a voltage converter is essential. It safely steps down the voltage to prevent your devices from burning out the moment you plug them in.

Premium Core, Built to Last

Built-in Protection for Your Peace of Mind
Flame Retardant Materials
Crafted with a high-quality, fire-resistant casing to ensure maximum safety and prevent fire hazards.
Temperature Control Protection
Intelligently monitors heat levels to prevent the unit from overheating during extended use.
Overload Protection
Automatically cuts off power when the load exceeds safe limits, safeguarding your system from damage.
Short Circuit Protection
Provides robust defense against short circuits, protecting both your valuable devices and the converter itself.
Dual Fuse Protection
Equipped with two layers of fuse protection for extra safety assurance and reliable performance.

| Product Model | SHJY-300VA |
| Product name | 300W household power converter 220V to 110V |
| Maximum applicable power | 300W* |
| Rated Input Voltage | 220V~ |
| Rated output voltage | 110V~ |
| Rated capacity | 300VA* |
| Rated Frequency | 50/60Hz |
| Operating cycle | 30/60min |
| sizes | 16.5×11×6.2cm(6.5×4.3×2.44 inch) |
| Size (with package) | 26×16×12.5cm(10.23×6.2×4.92 inch) |
| weights | 1.75kg(3.85 lbs) |
| Weight (with package) | 2kg(4.4 lbs) |
| Type | Dry-type |
| Safety Device-1 | Temperature Control |
| Automatic power-off temperature | ≥80℃ |
| Safety Device-2 | short circuit protector |
| Safety Device-3 | Double fuse protection |
| Materials | Aluminum wire winding |
| Core material | Ring transformer |
| certificate | CE FCC RoHs ... |

Product Operate Guide
Safety & Usage Tips for Your 300W Transformer To ensure safety and optimal performance, please follow these guidelines:
Keep Dry (Not Waterproof)
This unit features an open-core design for better cooling and is not waterproof. Keep it away from water and moisture to prevent short circuits.
Ensure Proper Ventilation
Some heat generation is normal. Do not block the side vents to allow for proper airflow. If you notice overheating or a burning smell, unplug it immediately.
Inspect Before First Use
Check the unit for any physical damage and ensure all parts are secure before plugging it in. If you hear any unusual noises during startup, stop using it right away.
FAQ
Voltage Converter & Transformer FAQ
![]() | How do I choose the right transformer for my device? |
Check the label on the back of your appliance to find its power rating in Watts (W) or Amps (A). You should always choose a transformer with a wattage capacity higher than your device's rating. Note: Motor-based devices often require extra power to start up (called "surge power"). We recommend adding a 20% buffer to your device's power requirement. Some high-surge devices may require 2 to 3 times their rated power at startup. |
![]() | What certifications do your products have? |
| Our voltage converters have obtained multiple international and domestic certifications, including CE, RoHS, and FCC. These ensure our products meet international standards for electrical safety, environmental protection, and electromagnetic compatibility. |
![]() | What devices are compatible with this voltage converter? |
This converter is designed for devices rated under 300W. It works perfectly with:
Simply check the nameplate on your appliance to ensure the power consumption is below 300W. |
![]() | What kind of after-sales service do you offer? |
We provide comprehensive support, including product consultation, usage guidance, and repair services. Our customer service team is ready to answer your questions and provide technical support. We also offer a warranty period to ensure your complete satisfaction. |
![]() | What should I do before choosing a transformer? |
To make the right choice, please prepare the following info:
We also recommend comparing different brands and prices to make an informed decision. |
![]() | Can I plug multiple devices into one transformer at the same time? |
| Yes, you can. Just make sure the combined total wattage of all connected devices does not exceed the rated capacity of the voltage converter. |
![]() | What is the difference between a voltage converter and a voltage stabilizer? |
A voltage converter changes the voltage level (e.g., stepping down 220V to 110V). A voltage stabilizer keeps the output voltage steady at a specific level required by your appliance, protecting it from fluctuations. |
![]() | My device has a UK, Australian, or Indian plug. Can I use it with the VC model? |
Yes. The VC series transformers are equipped with universal sockets (customizable) that are compatible with most 220V/50Hz plug types, including UK, AU, and Indian plugs. Note: South African plugs are not supported. |
![]() | Does the voltage converter change the frequency (Hz)? |
No, it does not change the frequency.
Most modern electronics (computers, printers, battery chargers, CD/DVD players) are not affected by this difference. However, motor-based appliances might run slightly slower, and analog clocks that rely on frequency for timing may not keep accurate time. |
![]() | Can I use a power converter to operate a microwave? |
Be careful! The wattage listed on a microwave is often the "Cooking Power" (output), not the actual power consumption (input). The actual running wattage is usually much higher (e.g., a "1000W" microwave might actually draw close to 1500W). Always check the label on the back of the microwave or the user manual for the actual input power rating before connecting it to a converter. |
Production Capacity
We ensure rapid product delivery and guarantee a smooth shipping process.
✔ | Extensive Industry Experience |
✔ | Advanced Manufacturing Capabilities |
✔ | Reliable Quality Assurance |
✔ | Flexible Customization |
✔ | On-Time Delivery |