VOLTAGE CONVERTER& Transformer
Manufacturer in China

The Shunhong TM777-1500VA (Merchant SKU: MB15001) is a high-reliability 220V to 110V step-down voltage converter engineered specifically to run imported American and Japanese 110V–120V household appliances safely on overseas 220V–240V power grids. 

The Shunhong TM333-500VA is an industrial-grade 500VA  step down voltage transformer converting AC 220V to AC 110V. Built with high-grade aluminum winding delivering high heat dissipation and cost efficiency, it is engineered for continuous, stable operation powering imported US (110V) from 220V–240V grids without voltage drop or motor stall.

• Continuous 250W Output: Smoothly steps down AC 220V to AC 110V with rock-solid full-load stability.
• High-Grade Aluminum Winding: Precision aluminum coils offer excellent thermal stability, light weight, and high cost-efficiency.
• Push-to-Reset Circuit Breaker: Instant overload protection with push-button reset—no replacement fuses required.
• Convection Louver Vents: Bilateral stamped vents provide natural passive cooling inside an industrial metal casing.
• Factory Direct & OEM/ODM Ready: Manufacturer wholesale pricing, customized sockets, custom logo, and low trial MOQs

The Shunhong TM111-3000VA is an ultra-high-capacity, cost-effective 220V to 110V step-down voltage converter engineered specifically to power imported North American 110V–120V heavy-duty household and commercial appliances safely on 220V–240V utility grids. Backed by 38 years of dedicated transformer engineering directly from our specialized factory, it integrates a high-efficiency cold-rolled silicon steel core with precision toroidal aluminum winding, delivering immense power reserves, balanced thermal dissipation, and rock-solid continuous voltage reduction for high-draw appliances up to 1500W continuous load.

3000VA High-Capacity Toroidal Core: Combines high-flux cold-rolled silicon steel with mature toroidal aluminum winding to supply substantial peak inrush surge capability, smooth voltage regulation, and durable operation under continuous 1500W heavy-duty loads.

Flame-Retardant Industrial Iron Enclosure: Constructed from high-tensile stamped steel with heat-resistant electrostatic coating, delivering complete shock isolation, impact resistance, and structural protection for home and studio environments.

Physical Master Switch with Zero-Standby Draw: The dedicated red rocker switch completely disconnects mains voltage when switched off, eliminating phantom electricity consumption and sparing users from repeatedly plugging and unplugging heavy power cables.

Versatile 3-Way Mounting Flexibility: Weighing approx. 4.5 kg, the unit supports secure wall hanging via rear mounting slots, vertical tower standing, or flat horizontal placement on countertops, utility stands, or workshop benches.

The Shunhong TM222-1000VA (MB10001) is a high-performance 1000VA step-down transformer designed to seamlessly convert 220V to 110V. Built with high-quality aluminum windings for exceptional heat dissipation and cost-effectiveness, this AC voltage converter is engineered for continuous and stable operation. It safely supplies power from a standard 220V–240V power grid to imported US and Japanese 110V appliances without voltage drops or motor stalling.

Key Features:

• Dedicated 110V Standard Output: Safely powers imported 110V American and North American small-to-medium appliances from a 220V power grid, ensuring stable performance with no cross-voltage interference.
• High-Quality Aluminum Winding: Lightweight, high-temperature resistant, and cost-effective, delivering highly efficient power conversion for daily electronic needs.
• Robust Safety Protection: Equipped with a built-in circuit breaker featuring a convenient reset button and a heavy-duty, flame-retardant metal casing for ultimate operational safety.
• Recommended Load Capacity: For safe, continuous, and long-term use, it is recommended to power appliances under 500W (allowing a standard safety margin for inductive or heating loads).

• Direct Factory OEM/ODM Services: As a direct transformer manufacturer, we support customized socket types (US, UK, EU, universal, etc.), private labeling (OEM), custom voltage requirements, and wholesale container shipping.

Shunhong TM888-2000VA (MB20001) 2000VA Step-Down Voltage Transformer (220V to 110V)
Backed by 38 years of manufacturing expertise, the Shunhong TM888-2000VA is a high-capacity  step-down voltage converter designed to safely power imported American and Japanese 110V appliances on 220V–240V grids. Built with an advanced silicon steel core and precision coils, it delivers efficient thermal management, low idle loss, and reliable continuous power.

Key Features & Advantages:
High-Efficiency Toroidal Core: Combines a low-hysteresis cold-rolled silicon steel core with precision winding to ensure stable voltage regulation and reliable performance under sustained 1200W loads.

Rugged Flame-Retardant Iron Housing: Built with high-tensile, heat-resistant metal to provide full impact protection, durability, and enhanced fire safety in any home or office environment.

Physical Master Rocker Switch: Features a prominent red power switch that cuts mains current completely at the source—preventing phantom standby drain and saving you from repeatedly unplugging heavy cables.

Flexible 3-Way Placement: Weighing just 4.2 kg, its compact design includes built-in rear wall-mount slots, allowing for wall hanging, upright tower positioning, or flat horizontal placement on countertops and shelves.

As the flagship high-capacity model in Shunhong’s pure copper series, the (copper)SHJY-3000VA (Merchant SKU: TN30001) is an ultra-heavy-duty dual-voltage step-down transformer designed to power authentic American 110V and Japanese 100V high-draw kitchenware, commercial-grade appliances, workshop machinery, and precision office tools in 220V domestic environments. Engineered with bilateral independent outlets delivering stabilized 110V on the left and 100V on the right across isolated circuits, it handles two imported devices at once with zero voltage sagging. Built with an extra-thick 1.5mm² flame-retardant pure copper power cable rated for 16A maximum current, a massive 100% pure copper toroidal core, and an 8-fold intelligent safety protection array, it easily absorbs severe inrush startup surges. Finished in a sleek minimalist pure white fire-resistant housing, the (copper)SHJY-3000VA combines heavy industrial performance with modern aesthetic elegance, backed by Shunhong’s 37-year manufacturing heritage and CE, RoHS, FCC, and CQC international quality certifications.

Dual-Socket Simultaneous 110V & 100V Output
Features separate heavy-duty US-standard 3-prong sockets on the left and right flanks. With isolated circuitry and independent load distribution, the left port delivers 110V and the right port supplies 100V simultaneously, allowing you to power two heavy appliances without buying multiple converters.

100% Pure Copper Toroidal Core
Engineered with high-permeability cold-rolled toroidal silicon steel and densely wound heavy-gauge pure copper wire coils. Copper delivers vastly superior conductivity over aluminum, preventing severe voltage drop and excess thermal rise during continuous high-wattage operation.

Extra-Thick 1.5mm² Molded Power Cable & Pure White Fire-Resistant Chassis
Constructed with an integrated 1.2m heavy-duty power cable featuring 1.5mm² thick copper core capable of handling up to 16A load currents. Housed in a flame-retardant V-0 grade ABS casing that resists high cooking temperatures, grease, and mechanical wear.

8-Fold Safety Protection Matrix with Auto-Restart Capability
Comprehensive multi-protection array includes dual thermal sensors, millisecond short-circuit cut-off, leakage lock, flame-retardant shell, stereoscopic convection vents, non-slip base pads, and automatic restart upon troubleshooting.

Whisper-Quiet (<20dB) Toroidal Operation & Civil Aviation Transport Compliance
Operating noise is strictly maintained under 20dB via natural convective dissipation without mechanical fans. Weighing ~9.2kg with no unshielded magnets or liquid electrolytes, it easily complies with civilian aviation baggage and high-speed rail passenger transportation rules.

Engineered specifically for imported American 110V and Japanese 100V high-wattage kitchen appliances, salon styling tools, and precision studio gear, the Shunhong (copper)SHJY-2000VA (Merchant SKU: TN20001) dual-voltage step-down converter transforms domestic 220V power down to independent 110V and 100V heavy-duty outputs. American pressure cookers, blenders, espresso machines, and Japanese IH smart cookers feature delicate microchips and sensitive motors that degrade rapidly under improper voltages or voltage sags. Built with 100% pure copper toroidal windings and a high-flux cold-rolled silicon steel core, this unit exhibits far lower electrical resistance and thermal dissipation than aluminum models, maintaining rock-solid 110V and 100V output with zero voltage collapse under sustained heavy loads. Enclosed in a clean, minimalist pure white fire-resistant housing with an integrated 1.0mm² flame-retardant power cord and an 8-fold multi-protection system, the (copper)SHJY-2000VA delivers whisper-quiet, factory-grade reliability backed by Shunhong’s 37-year manufacturing lineage.

Engineered specifically to solve the voltage incompatibility of American 110V and Japanese 100V appliances in domestic 220V power regions, the Shunhong (copper)SHJY-800VA (Merchant SKU: TN8001) step-down voltage converter features dual independent bilateral outlets. The left socket outputs stabilized 110V for American gear, while the right socket provides exact 100V for Japanese appliances, enabling two imported devices to run simultaneously without cross-circuit interference. Built with 100% pure copper toroidal windings and a high-permeability cold-rolled silicon steel core, its internal electrical resistance and running temperatures are vastly lower than standard aluminum coil models, delivering superior efficiency and zero voltage drift during prolonged duty cycles. Enclosed in a sleek, minimalist fire-resistant pure white ABS casing with an integrated molded power cable and an 8-fold multi-protection network, the (copper)SHJY-800VA provides factory-certified power backed by Shunhong’s 37-year manufacturing lineage and international CE, RoHS, FCC, and CQC certifications. Dual-Port Bilateral Independent Voltage Division: Run US & Japanese Appliances Together

Crafted with 100% pure copper toroidal windings and premium cold-rolled silicon steel, the Shunhong (copper)SHJY-500VA (TN5001) is a specialized dual-voltage step-down transformer engineered for American 110V and Japanese 100V imported personal care and household electronics operating in 220V domestic regions. The chassis features bilateral independent US-standard 3-prong sockets: the left socket delivers calibrated 110V power for American devices, while the right socket supplies authentic 100V for Japanese domestic gadgets—allowing two imported appliances to operate simultaneously without interference or needing separate converters. Enclosed in a sleek, minimalist fire-resistant pure white ABS housing with an integrated molded power cable, its pure copper core delivers superior electrical conductivity, significantly lower running temperatures, and exceptional energy efficiency compared to aluminum counterparts. Certified under CE, RoHS, FCC, and CQC with an 8-fold multi-layer safety matrix, the (copper)SHJY-500VA brings professional 37-year Shunhong manufacturing reliability to dressing tables, vanity counters, and study desks.

Dual Bilateral Independent Outlets: Simultaneous 110V & 100V Dual Output
Features two isolated bilateral US-standard sockets. The left port supplies calibrated 110V for US electronics, while the right port delivers 100V for Japanese devices. Both circuits operate completely independently without cross-interference, powering two overseas appliances at once.

100% Pure Copper Toroidal Core: Superior Conductivity & Minimal Heat
Engineered with premium oxygen-free pure copper magnet wire wound over a high-flux cold-rolled silicon steel core. Pure copper provides vastly superior electrical conductivity compared to aluminum, minimizing coil impedance and thermal buildup while ensuring rock-solid voltage stability with zero drift.

Sleek Minimalist White Fire-Resistant ABS Shell with Integrated Cable
Molded from high-impact fire-rated ABS+PC composite engineering plastic that resists high heat, scratches, and open flames. Paired with an integrated 1.2m molded power cord with a 0.5mm² pure copper core, eliminating loose plug connections and terminal arcing.

8-Fold Full-Spectrum Safety Protection Array with Auto-Fault Recovery
Comprehensive protection array integrates thermal cut-off sensor, millisecond short-circuit cut-off, fuse overload safeguard, leakage lock, fire-resistant casing, bilateral convective vents, anti-slip base pads, and automatic restart upon fault resolution.

Whisper-Quiet (<20dB) Toroidal Operation & Civil Aviation Transport Compliance
Toroidal core delivers smooth, hum-free operation below 20dB via natural convective dissipation without noisy fans. Weighing ~3.0kg with no unshielded magnets or liquid electrolytes, it easily complies with civilian aviation baggage and high-speed rail passenger transportation rules.

Power your imported electronics safely with the Shunhong 200W Pure Copper Transformer. Expertly converting 220V to 110V, this compact and lightweight step-down converter is perfect for travel and home use. Ideal for personal care devices, dental cleaners, and small household gadgets from the US, Canada, and Taiwan. Featuring advanced flame-retardant housing and precise voltage regulation for ultimate safety.

"Small and efficient, cross-voltage hassle-free: This 200W mini step-down transformer, designed for 100V Japanese appliances, easily achieves seamless conversion under 220V voltage environments, ensuring stable operation of equipment."

Engineered as an A-grade dual-use industrial and residential powerhouse, the Shunhong SHJY-3000VA (N30002) step up transformer provides massive, uncompromised 3000VA capacity to operate imported 220V high-wattage equipment on North American 110V electrical lines. Dressed in a sleek white flame-retardant ABS chassis, it combines a high-density toroidal aluminum core with cold-rolled silicon steel to deliver unwavering voltage stability and whisper-quiet performance. Featuring bilateral dual 220V outputs, a heavy-gauge 1.5mm² integrated power cord, and an eight-fold proactive safety matrix, it effortlessly powers imported high-end kitchenware, professional salon blowers, office machinery, and light workshop tools with uncompromising dependability.