SHJY-500VA (copper)
Shunhong
TN5004
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Product Advantage
Enterprise whatsapp account: +86-13690698363
Specially engineered for Chinese students, expats, and travelers relocating to Japan, the Shunhong (Copper) SHJY-500VA (TN5004) seamlessly converts Japanese 100V mains power into dual synchronized 220V Chinese standard outputs. Housing a 100% pure copper toroidal core inside a sleek white flame-retardant shell, it sits neatly on desks, countertops, or vanity tables to power imported personal care tools and compact electronics.
Dual Isolated 220V Ports: Run Two Domestic Appliances in Japan
Traditional step-up transformers offer only a single outlet, forcing users to buy multiple converters or frequently swap plugs in tiny Japanese apartments. The (copper)SHJY-500VA features dual isolated secondary windings feeding left and right standard China 5-hole sockets. Students and expats can simultaneously power styling tools, electric shavers, or desk gadgets with uncompromised voltage stability.
100% Pure Copper Toroidal Core: Low Loss & Cool Operation in Japan
Unlike aluminum-wound transformers prone to resistive voltage sag and excessive heat, this model is wound with premium oxygen-free pure copper wire around a cold-rolled silicon steel ring. Electrical resistance is drastically reduced, delivering over 92% conversion efficiency, zero voltage drop under load, and steady filtration of Japanese grid fluctuations to safeguard sensitive electronics.
One-Touch Instant Voltage Boost: Zero Learning Curve for All Ages
Equipped with an ergonomic physical rocker switch and an intuitive power LED, the unit activates instantly upon connection to Japanese 100V mains without warm-up lag or configuration. Eliminates the need to repeatedly plug and unplug cords, reducing arc sparking and mechanical cord fatigue.
8-Fold Linked Full-Domain Safety: Engineered for Unattended Dorms
A comprehensive safety ecosystem safeguards your home: millisecond-grade short-circuit cutoff, internal thermal overload sensors, electromagnetic radiation suppression, exterior leakage isolation, V-0 self-extinguishing housing, perimeter convection vents, non-slip base, and automatic fault-clearing power restoration.
Acoustically Silent (≤20dB) & Airline Baggage Approved
Precision toroidal manufacturing eliminates 50Hz/60Hz electromagnetic buzzing, keeping noise levels under 20dB for peaceful sleep. Free of permanent magnets and hazardous liquids, the unit complies with international civil aviation carry-on and checked luggage standards.
Factory Direct OEM/ODM Customization & Stable Delivery
Originating from our factory established in 1987 with FCC, RoHS, CQC, and CE certifications, we offer customized input plugs (UK, EU, AU) and non-standard output voltages. Stable supply chain guarantees rapid order fulfillment for cross-border e-commerce and bulk procurement.
Technical Parameters
| Product Model | SHJY-500VA(copper) |
| Product name | Copper 500W household power converter 100V to 220V |
| Maximum applicable power | 500W* |
| Rated Input Voltage | 100V~ |
| Rated output voltage | 220V~ |
| Rated capacity | 400VA* |
| Rated Frequency | 50/60Hz |
| Operating cycle | 30/60min |
| sizes | 19*15*6.5cm（7.48*5.9*2.55 inch） |
| Size (with package) | 26*25*14cm（10.23*9.84*5.51 inch） |
| weights | 3kg（6.61 lbs） |
| Weight (with package) | 3.45kg（7.6 lbs） |
| Type | Dry-type |
| Safety Device-1 | Temperature Control |
| Automatic power-off temperature | ≥80℃ |
| Power cord square | 0.5 square |
| Maximum Passing Current | 2.5A |
| Safety Device-2 | short circuit protector |
| Materials | Copper wire winding |
| Core material | Ring transformer |
| certificate | CE、FCC Etc. |
Product Uses
This 500W copper transformer has the conversion function of 100V to 220V, and its application scenarios are wide, which can meet the needs of different users.
1, in the household field, whether it is a lamp, air purifier or other commonly used household appliances, as long as the power is below 400W, it can be easily used through this transformer. It is especially suitable for users in countries with a rated voltage of 100V who want to use European or Chinese appliances with a rated voltage of 220V.
2. In the office environment, this transformer can ensure the normal operation of imported equipment such as printers and copiers with 220V voltage, and avoid affecting office efficiency due to voltage mismatch.
3, for the beauty salon industry, this transformer can convert 100V voltage into 220V voltage required for European home beauty salon instruments, so that users can enjoy professional maintenance without going abroad.
4. In addition, in the medical field, this transformer provides stable 220V voltage output for imported medical equipment to ensure the normal operation of the equipment and meet the medical needs of users.
In short, this transformer has excellent performance in many fields such as home, office, beauty salon and medical treatment, and its stable performance and reliable security measures bring users a convenient and comfortable experience.
Product Operate Guide
Power transformer usage notice:
1. Waterproof and moisture-proof:
Since the transformer is designed to run straight through the inner core, in order to optimize heat dissipation, the housing is not waterproofed to a large area. When using, be sure to stay away from the water source to prevent water intrusion and avoid short circuit or safety accidents.
2, heat dissipation and ventilation:
Heat may be generated during transformer operation, which is a normal phenomenon. Ensure that the heat dissipation holes on the left and right sides are unblocked to prevent blockage and keep the air flowing to facilitate heat dissipation. If you find abnormal heat or burning odor, discontinue use immediately and consult a professional.
3, check before starting:
Before starting the transformer for the first time, please carefully check whether the transformer appearance is intact and whether the parts are firm. When starting up for the first time, pay attention to whether there is an abnormal sound or abnormal situation, if there is an abnormal, please stop immediately to check.
Power transformer use process simplified version:
1. Check that the appearance of the converter is complete and spare parts are fixed.
2. Connect the 220V power supply to the input plug.
3, click on the switch key, power.
4, Connect the 100V electrical appliance, start to use.
FAQ
1. What certificates do you have for your products?
Our voltage converter products have been CE, ROHS and FCC certification. These certifications not only ensure the electrical safety and environmental protection standards of the product, but also verify its electromagnetic compatibility, thus providing users with a more reliable and safe use guarantee.
2. What are the products supported by this voltage converter?
This voltage converter supports the use of a variety of 220V electrical equipment, including household appliances such as air purifiers, desk lamps, office appliances such as small printers, scanners, and beauty salon and medical products such as home curling irons, home pressure meters. As long as the power of your electrical equipment is within the carrying range of the transformer, and the voltage requirement is 220V, you can use this voltage converter.
3, What kind of after-sales service do you have?
We provide a full range of after-sales service, including product consultation, use guidance, fault repair and so on. Our professional customer service team is ready to answer your questions and provide technical support. At the same time, we also promise to provide quality assurance services within a certain period of time to ensure that your use experience is worry-free.
4, how to choose the transformer suitable for my electrical appliance?
When choosing a transformer suitable for your appliance, you first need to consider the rated voltage and power of the appliance. Ensure that the output voltage of the selected transformer matches the requirements of the appliance, and the power can meet the needs of the appliance. In addition, consider the transformer's brand reputation, quality stability and price factors to make an informed purchasing decision.
5, What do I need to do before choosing a transformer?
Before choosing a transformer, you need to know the rated voltage and power of the appliance, and understand the power supply voltage in the region in order to choose a suitable transformer. At the same time, consider the use of the appliance environment and frequency, in order to determine the type and specifications of the transformer. Finally, understand the transformer brands and prices on the market so that you can choose the product that best meets your needs within your budget.
