SHJY-800VA（copper）
ShunHong
TN8002
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Product Features & Benefits
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The (Copper) SHJY-800VA (TN8002) is an 800W pure copper step-up voltage converter engineered to elevate 110V North American grid power to dual 220V Chinese standard outputs. Manufactured by Shunhong Transformer Works (est. 1987) with full factory QA, it offers low standby loss and exceptional thermal stability under sustained load.
Dual Synchronized 220V Outputs: Double Efficiency for US Apartments
Standard single-socket converters force you to constantly swap cables between devices. The (copper)SHJY-800VA features two independent secondary circuits feeding left and right standard China 5-hole sockets, powering two domestic appliances concurrently with unwavering voltage stability.
100% Pure Copper Toroidal Core
Unlike aluminum coils that suffer high resistance and rapid heat accumulation, our 100% pure copper toroidal core offers superior conductivity, lower operating heat, and over 92% power conversion efficiency. It filters US grid spikes and keeps 220V output from drifting, shielding sensitive microchips in beauty tools and printers.
One-Touch Instant Voltage Boost
Features a heavy-duty physical switch and a high-clarity power LED. Plug into an American 110V wall outlet and flip the switch for instant 220V output with zero preheating or software setup. Eliminates repeated socket pulling and protects against contact arcing.
8-Fold Linked Full-Domain Safety
Integrates short-circuit cutoff, temperature-limiting thermal protection, anti-EMI shielding, exterior chassis leakage barrier, V-0 flame-retardant housing, natural convection channels, anti-slip feet, and automatic reset after faults clear, giving total peace of mind in dorms and rental properties.
Ultra-Quiet (≤20dB) & Airline Baggage Security Compliant
Operating noise is rated below 20dB, ensuring completely undisturbed sleep in compact studio apartments. The unit contains zero magnetic components or liquid substances, fully compliant with FAA, TSA, and international baggage transport regulations.
37-Year Factory Excellence & Global Customization Services
Built with 37 years of specialized voltage converter manufacturing mastery since 1987. Backed by FCC, RoHS, CQC, and CE certifications. Supports customized UK/EU/AU plugs and non-standard output voltages with dependable production lead times.
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-800VA | Merchant SKU | TN8002 | |
| Rated Capacity | 800VA (Pure Copper Core) | Recommended Continuous Load | Continuous duty recommended under 640W | |
| Voltage Conversion Direction | 110V to Dual 220V Step Up | Input Configuration | US Standard 3-Prong Plug, Integrated 1.2m Flame-Retardant Cable (0.5mm²) | |
| Output Sockets | Left & Right Sides: 2 × China Standard 5-Hole Grounded Sockets | Internal Core Material | 100% Pure Copper Toroidal Windings + Cold-Rolled Silicon Steel Core | |
| Max Through Current | 2.5A | No-Load Standby Current | ~10mA | |
| Efficiency | ≥80% | Control & Indicator | Physical Heavy-Duty Rocker Switch + LED Power Indicator Light | |
| Net Weight | Approx. 3.80 kg (8.38 lbs) | Gross Weight | Approx. 4.20 kg (9.26 lbs) | |
| Product Dimensions | 19.0 × 15.0 × 6.5 cm (7.48 × 5.91 × 2.56 in) | Packaging Dimensions | 26.0 × 25.0 × 14.0 cm (10.24 × 9.84 × 5.51 in) | |
| Safety Protection System | Thermal Cut-Off, Short-Circuit, Anti-EMI, Leakage, V-0 Fire-Resistant Shell, Convection Vents, Anti-Slip Base, Auto-Reset | Housing Material | Grade Fire-Retardant ABS |
Compatible Devices & Applications
Continuous duty recommended under 640W
Chinese Salon Hair Dryers & Styling Curlers (200W - 600W) Domestic Baby Food Steamers & Formula Makers (150W - 550W) Sweeping Robots, Charging Docks & Hand Vacuums (40W - 150W) Tabletop Sewing Machines & Electric Craft Cutters (70W - 200W) | Electric Toothbrushes & Professional Grooming Clippers (15W - 50W) Ultrasonic Humidifiers & Floor Standing Fans (30W - 80W) Desktop Photo Printers, Label Makers & Heat Binders (60W - 250W) Compact CD/Audio Players & Desktop Air Purifiers (25W - 75W) |
Mid-power motor appliances (hair dryers, food processors) experience inrush current during startup. Keep continuous total wattage under 640W for maximum reliability and cool running. | |
How to Use This Voltage Converter
Frequently Asked Questions About Voltage Converters
Why is (copper)SHJY-800VA recommended for domestic hair dryers in the US?
Hair dryers contain high-heat resistance coils and high-speed blower motors that draw substantial current. Aluminum-wound converters often heat up rapidly and suffer from voltage drop under such loads, reducing air temperature and blower speed. The 100% pure copper core in (copper)SHJY-800VA maintains stable 220V power without voltage sag.
Can I connect a baby food maker and an ultrasonic humidifier to both sockets at once?
Yes. Both the left and right China standard 5-hole sockets operate via isolated circuits delivering calibrated 220V simultaneously. As long as their total running wattage remains within the recommended 640W continuous limit, they can operate together safely.
Does this transformer make buzzing noises in a quiet bedroom?
No. Thanks to the seamless cold-rolled silicon steel ring and precision tightly-wound pure copper wire, magnetic leakage and vibration are virtually eliminated. Operating sound is strictly below 20dB, ensuring serene sleeping conditions.
