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300VA Voltage Converter Series – Step Down Transformers
300VA Step Down Transformer (220V to 110V)
| 300VA Step Down Transformer | 220V to 110V | Use US/Canadian small appliances in 220V regions | Type I (CN) Input + Type A/B (US) Output (Universal socket available upon request) | US-imported desk lamps, CD players, robot vacuums |
Product Description
Product Overview
Design & Specifications
Sleek Appearance
Minimalist white square design with a flame-retardant PC shell that blends perfectly into any home decor
Detailed parameters
| Product Model | SHJY-300VA |
| Product name | 300W household power converter 220V to 110V |
| Rated Input Voltage | 220V~ |
| Rated output voltage | 110V~ |
| Rated capacity | 280VA* |
| Rated Frequency | 50/60Hz |
| Operating cycle | 30/60min |
| sizes | 16.5×11×6.5cm (6.50×4.33×2.56 inch) |
| Size (with package) | 26×16×12.5cm (10.24×6.30×4.92 inch) |
| weights | 1.75kg (3.86 lbs) |
| Weight (with package) | 2.0kg (4.41 lbs) |
| Type | Dry-type |
| Safety Device | Fuse protection, temperature protection, short-circuit protection, and flame-retardant protection |
| Power cord square | 1 square |
| Automatic power-off temperature | ≤85℃ |
| Materials | Aluminum wire winding |
| Core material | Ring transformer |
| certificate | CE、FCC Etc. |
Key Features
Multiple Safety Protections: Built-in safeguards for peace of mind.
Energy Efficient: Low power consumption and enhanced durability.
Flame-Retardant Material: Safer and more heat-resistant.
Product Advantages
Product Advantages of Our 300W Voltage Converter
Designed for safe, efficient, and convenient voltage conversion, this compact voltage converter combines advanced transformer technology, multiple safety features, and travel-friendly design. It is ideal for home appliances, office equipment, and travel devices requiring reliable step up or step down voltage conversion.
Portable & Lightweight Design
With a lightweight body of only 1.75 kg, this travel voltage converter is easy to carry and store. The compact design fits easily into backpacks or luggage, making it suitable for business trips, international travel, and everyday household use.
The non-magnetic construction meets common transportation requirements and provides a safer travel experience.
High-efficiency and high-quality winding transformer
Built with premium copper coils, this voltage converter delivers excellent electrical conductivity, lower energy loss, and reduced heat generation.
The transformer achieves over 90% voltage conversion efficiency, helping maintain stable performance while minimizing unnecessary power consumption.
Fast One-Touch Power Switch
The built-in one-touch switch provides instant operation without complicated settings.
After startup, the voltage conversion process completes quickly, allowing connected devices to receive stable power with minimal waiting time.
Efficient Dual-Side Cooling System
The transformer features a dual-side convection cooling design with symmetrical ventilation openings.
This optimized airflow structure improves heat dissipation, helping maintain safe operating temperatures during long periods of continuous use.
Ultra-Quiet Operation for Home Use
Operating at ≤20dB noise level, this quiet voltage converter produces minimal operating sound.
It is suitable for bedrooms, offices, study rooms, and nighttime use where low noise performance is important.
Flame-Retardant Housing & Heat Resistance
The outer shell and internal wiring are made from flame-retardant ABS materials.
This construction provides improved heat resistance, electrical safety, and long-term durability during daily operation.
With near-zero standby power consumption, this energy-efficient voltage converter reduces unnecessary energy waste.
The low-loss design helps extend product lifespan while providing stable voltage conversion performance.
6-Layer Safety Protection System
For improved reliability and user safety, this voltage converter includes multiple built-in protection functions:
Fuse protection
Thermal overload protection
Short-circuit protection
Leakage protection
Flame-retardant housing protection
Automatic recovery after power outage
These safety features help protect both the transformer and connected appliances.
Certified Quality
Fully certified with FCC, RoHS, CE, and CQC. Rigorously tested and compliant for both international and domestic use.
Use safely
Safety & Usage Tips for 300W Voltage Transformers
To ensure safe operation and maximize the lifespan of your 300W voltage transformer, please follow the recommendations below.
Keep the Transformer Dry
This voltage converter features an open-ventilation design to improve heat dissipation and operating efficiency. However, it is not waterproof and should always be kept away from water, moisture, rain, and humid environments.
Do not use near sinks, bathtubs, or wet surfaces.
Avoid exposure to high humidity.
Keep the transformer in a dry, well-ventilated area.
Ensure Proper Ventilation
A small amount of heat during operation is normal for any step up or step down transformer. The built-in ventilation system helps maintain safe operating temperatures.
Do not block the side ventilation openings.
Leave sufficient space around the transformer for airflow.
Avoid placing the unit inside enclosed cabinets or under fabric materials.
Important: If the transformer becomes excessively hot or produces a burning smell, disconnect the power immediately and inspect the unit before further use.
Inspect Before First Use
Before connecting your appliance, carefully inspect the transformer to ensure it is in good condition.
Check for any visible damage during shipping.
Ensure the power cord and plugs are secure.
Verify that the selected input and output voltage match your appliance requirements.
If you notice abnormal noise, vibration, sparks, or unusual odors during startup, stop using the transformer immediately and contact customer support.
Additional Safety Recommendations
Always use the transformer within its rated power capacity.
Ensure the appliance wattage does not exceed the transformer's maximum output.
Disconnect the transformer when not in use for extended periods.
Keep the unit out of reach of children.
Following these safety guidelines will help ensure reliable performance, efficient voltage conversion, and long-term durability.
FAQ
Frequently Asked Questions About 300VA Voltage Converter
1. How do I choose the correct voltage converter for my appliance?
Answer:
To select the right voltage converter, first check the power rating on your appliance label, including the wattage (W) or VA rating.
We recommend choosing a voltage transformer with at least 20%–30% higher capacity than your appliance’s maximum power consumption. This extra capacity helps handle startup surges and ensures safer, more stable operation.
2. What is the maximum load capacity of this 300VA voltage converter?
Answer:
This 300VA voltage converter is designed to safely support a maximum continuous load of approximately 240W (based on a power factor of 0.8).
It is ideal for small household appliances, travel electronics, office devices, and sensitive equipment that require reliable voltage conversion.
3. Does this voltage converter support both step up and step down conversion?
Answer:
No. This transformer is designed for single-direction voltage conversion only.
Available conversion options include:
220V to 110V Step Down Transformer
220V to 100V Step Down Transformer
110V to 220V Step Up Transformer
100V to 220V Step Up Transformer
Each model supports one specific voltage conversion direction and does not provide automatic bidirectional conversion.
4. What appliances can I use with this 300VA voltage converter?
Answer:
This 300VA transformer supports most household appliances and electronic devices with a power requirement below 240W.
Typical applications include:
Small kitchen appliances
Travel electronics
Lamps
Audio devices
Personal care devices
Small household equipment
Always check your appliance’s wattage before use.
5. Does this 300VA transformer have a cooling fan?
Answer:
No. The 300VA voltage converter uses an efficient dual-side ventilation cooling system instead of a noisy cooling fan.
The specially designed ventilation openings provide effective heat dissipation while maintaining quiet operation, making it suitable for bedrooms, offices, and other low-noise environments.
6. Can I use this voltage converter continuously for 24 hours?
Answer:
Yes. This 300VA voltage converter is designed for continuous 24/7 operation when used correctly.
For long-term use, we recommend leaving sufficient power margin. The connected appliance power should ideally be less than 50% of the transformer’s rated capacity to ensure stable performance and extend product lifespan.
7. What safety certifications does this 300VA transformer have?
Answer:
Safety is our top priority.
Our 300VA voltage converter is certified with:
CE Certification
RoHS Compliance
FCC Certification
It also features built-in safety protections, including:
Over-voltage protection
Over-current protection
Over-temperature protection
Short-circuit protection
These features help protect both the transformer and connected devices.
8. What is the warranty policy for your voltage converters?
Answer:
We stand behind the quality of our voltage converters.
All products include a standard 1-year manufacturer warranty. If any quality issue occurs during normal use, we provide professional technical support, repair, or replacement service.
9. Do you provide OEM and ODM services for voltage converters?
Answer:
Yes. As a professional voltage transformer manufacturer, we provide complete OEM and ODM customization services.
Customization options include:
Custom logo
Customized packaging
Product color
Voltage specifications
Product design requirements
Contact our sales team for a customized solution and quotation.
10. What is the delivery time for bulk voltage converter orders?
Answer:
Sample orders are usually shipped within 3–5 business days.
For OEM and ODM bulk orders, the standard production lead time is approximately 15–25 days, depending on order quantity and customization requirements.
Once your order is confirmed, we will provide an accurate production and delivery schedule.
