SHJY-500VA (copper)
Shunhong
TN5001
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Product Features & Benefits
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Crafted with a 100% pure copper toroidal core and cold-rolled silicon steel, the Shunhong (Copper) SHJY-500VA (TN5001) delivers precise step-down conversion from 220V power down to dedicated 110V (US) and 100V (Japan) outputs. Its minimalist pure-white fire-resistant ABS shell sits elegantly on vanity counters and study desks to power imported hair styling tools, facial care wands, electric shavers, and compact electronics.
Dual-Port Bilateral 110V & 100V Synchronous Output: Powers US & Japanese Gadgets at Once
Unlike ordinary single-voltage converters, the (copper)SHJY-500VA features two isolated circuits on opposing flanks. The left outlet supplies calibrated 110V for American appliances, while the right outlet delivers authentic 100V for Japanese electronics. Both run simultaneously with zero cross-interference, eliminating the clutter and cost of buying two separate boxes.
100% Pure Copper Toroidal Windings: Minimal Internal Resistance & Zero Voltage Sag
Engineered with high-purity pure copper wire tightly wound on a grain-oriented cold-rolled toroidal silicon steel core. Pure copper delivers significantly lower electrical resistance and higher thermal conductivity than aluminum models, keeping full-load heat generation exceptionally low while preventing voltage collapse under fluctuating grid conditions.
One-Touch Rocker Activation & Visual LED: Instant Transformation for All Ages
Equipped with an independent physical rocker switch and high-visibility status LED. Click once to initiate instant voltage conversion without waiting for preheating. Eliminates the need to repeatedly plug and unplug cords, avoiding socket arcing, cord strain, and accidental looseness.
Whisper-Quiet (<20dB) Dual-Sided Passive Convective Cooling: Silent Living
Dense convective ventilation slits on both sides generate a natural airflow chimney effect that rapidly dissipates core heat without noisy cooling fans. Sound levels are strictly below 20dB, ensuring uninterrupted sleep and tranquil study environments.
Flame-Retardant ABS+PC Casing & Molded Power Cable: Built to Endure Heat & Impact
Constructed from high-grade fire-retardant ABS+PC composite engineering plastic that resists high temperatures, physical impacts, and chemical aging. Accompanied by an integrated 1.2m molded power cord with a 0.5mm² flame-retardant pure copper core for robust connection integrity.
Factory-Grade Quality Control with 37-Year Lineage & Customization Support
Backed by Shunhong’s established transformer manufacturing heritage since 1987. Each unit undergoes strict voltage calibration, full-load thermal testing, and 8-fold safety validation. Compliant with CE, RoHS, FCC, and CQC standards, with full OEM/ODM plug and voltage customization support.
Made of pure copper material
Dual 220V output transformer
Thermal protection
Flame retardant protection
Short-circuit protection
Portable handle and hook
Technical Specifications
| Product Model | (copper)SHJY-500VA | Merchant SKU Code | TN5001 | |
| Rated Apparent Power | 500VA (Pure Copper Peak Capacity) | Core & Winding Architecture | 100% Pure Copper Toroidal Windings + Cold-Rolled Silicon Steel Core | |
| Voltage Transformation Direction | 220V to 110V & 100V Dual Output | Frequency | 50Hz / 60Hz | |
| Net Weight | Approx. 3.00 kg (6.61 lbs) | Gross Weight (With Box) | Approx. 3.20 kg (7.05 lbs) | |
| Product Dimensions (L×W×H) | 19.0 × 15.0 × 6.5 cm (7.48 × 5.91 × 2.56 in) | Package Dimensions (L×W×H) | 26.0 × 25.0 × 14.0 cm (10.24 × 9.84 × 5.51 in) | |
| Input Connection Type | Integrated Power Cable (1.2m Length, 0.5mm² High-Conductivity Copper) | Output Socket Layout | Bilateral Dual Sockets (Left US 3-Prong 110V + Right Japan 3-Prong 100V) | |
| Power Conversion Efficiency | ≥ 90% | No-Load Current | Approx. 10mA | |
| Maximum Rated Current | 2.5A Max Load Current | Safety Protection System | Thermal Cut-Off, Short-Circuit, Fuse Overload, Leakage, Fireproof | |
| Enclosure Material & Finish | High-Impact Flame-Retardant ABS+PC Engineering Plastic | Cooling Method | Dual-Sided Convective Ventilation Slots | |
| Control Interface | Heavy-Duty Rocker Switch + High-Luminance LED Power Indicator | Recommended Continuous Duty | Recommended Continuous Load Under 400W |
Compatible Devices & Applications
US 110V & Japanese 100V Personal Care, Hair Styling, Vanity Grooming & Small Electronics
Recommended Continuous Load Under 400W
American & Japanese ceramic curling wands & styling flat irons (30W - 150W) Men’s rotary electric shavers, precision beard trimmers & hair clippers (5W - 30W) LED illuminated vanity makeup mirrors & facial mist steamers (15W - 120W) Robot vacuum cleaner smart charging docks & handheld cordless bases (25W - 80W) Home baby formula milk warmers & compact puree blenders (under 400W) | Imported sonic electric toothbrushes, charging stands & water flossers (5W - 35W) Compact imported blow dryers operated on low/medium heat settings (under 400W) Imported Japanese CD/cassette music players, DAC preamplifiers & audiophile gadgets (20W - 80W) Ultrasonic desktop humidifiers, aroma diffusers & small desk fans (10W - 50W) Desktop electric document laminators, small glue binders & portable sewing machines (under 400W) |
Headroom Factor The (copper)SHJY-500VA possesses a nominal rating of 500VA. Under prolonged continuous duty exceeding 30 minutes, standard electrical engineering guidelines dictate maintaining continuous appliance wattage below 400W (80% load factor). For appliances with heating elements (curling irons) or motor drives, calculate a 1.25x - 1.5x surge safety margin. DO NOT plug in high-wattage heating kettles, high-power hair dryers (1200W+), or induction cooktops into this 500VA model. | |
Frequently Asked Questions About Voltage Converters
Why choose the Pure Copper (copper)SHJY-500VA over an aluminum coil step-down converter?
Pure copper possesses significantly lower electrical resistivity and higher thermal conductivity than aluminum. The pure copper shjy-500va 220v to 110v 100v transformer experiences vastly reduced internal thermal rise and energy loss under load, ensuring zero voltage sag during prolonged styling cycles and extending transformer life for decades.
What is the maximum continuous appliance wattage permitted on the (copper)SHJY-500VA (Merchant SKU: TN5001)?
While the maximum peak apparent capacity is 500VA, for safe continuous operation exceeding 30 minutes, continuous load is recommended under 400W. This 20% safety margin accounts for heat dissipation and AC power factor. The copper shjy-500va step down voltage converter dual outlet is ideal for small devices under 400W.
Can I simultaneously plug an American 110V curling wand and a Japanese 100V facial wand into the two sockets?
Yes, absolutely. The (copper)SHJY-500VA incorporates two independent bilateral sockets. The left socket outputs regulated 110V for US gear, while the right socket supplies exact 100V for Japanese gear. The dual voltage 110v and 100v copper step down transformer routes power across isolated circuits without cross-voltage interference.
Does the pure copper toroidal transformer emit buzzing hum or electromagnetic interference when used on a vanity desk?
No. Thanks to its tightly wound pure copper toroidal core, magnetic flux remains completely self-contained within the closed-loop silicon steel core. Operating noise is strictly under 20dB (whisper-quiet), and the compact silent 220v to 110v 100v copper transformer 500va features anti-EMC shielding to ensure zero interference.
