SHGJ-1000VA 1000W Bidirectional Voltage Converter 220V to 110V & 110V to 220V Step Up Down Transformer

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SHGJ-1000VA 1000W Bidirectional Voltage Converter 220V to 110V & 110V to 220V Step Up Down Transformer

SHGJ-1000VA 1000W Bidirectional Voltage Converter 220V to 110V & 110V to 220V Step Up Down Transformer

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The SHGJ-1000VA bidirectional voltage converter is a heavy-duty, reversible step-up and step-down power transformer engineered for international home and office electronics. Equipped with an ultra-efficient toroidal core, robust flame-retardant housing, and silent convection cooling vents, this CE & FCC certified converter flawlessly powers imported audio equipment, desktop PCs, laser printers, food processors, and home medical devices across 110V and 220V electrical systems globally. (Please see the Technical Specifications and Appliance Matching Guide below for continuous power guidelines).

• Dual-Way Reversible Conversion (220V ⇄ 110V Global Compatibility): Effortlessly convert 220V down to 110V or step up 110V to 220V via the rear selector switch. Universal socket configuration allows North American, European, and Asian appliances to plug in simultaneously without adapter clutter.

• 1000VA Heavy-Duty Toroidal Core with Clean Electromagnetic Shielding: Built with high-permeability cold-rolled grain-oriented silicon steel for high electrical efficiency. Delivers clean, uncolored power without humming, providing reliable voltage stability for sensitive Hi-Fi audio amplifiers, CPAP machines, and computing equipment. (See technical specifications below for continuous power ratings).

• Integrated Ergonomic Carrying Handle & Sturdy Portable Build: Features a heavy-gauge, recessed ergonomic carrying handle designed for balanced load distribution. Weighing 4.8kg, it can be smoothly transported between sound rooms, home offices, and living rooms with complete ease.

• Fire-Resistant Cold-Rolled Casing with Convective Thermal Dissipation: Full-metal fire-retardant housing withstands high ambient temperatures and accidental impacts. Precision convection cooling louvers allow heat to radiate naturally without noisy fans, maintaining low thermal rise during prolonged multi-hour sessions.

• CE & FCC Double Safety Certified with Auto-Reset Breaker: Fully certified by CE and FCC regulatory standards for international electrical reliability. Outfitted with an automatic overload circuit breaker that prevents short circuits, overvoltage spikes, and transformer overheating with convenient push-button reset.

Model:
SHGJ-1000VA
Brand:
Shunhong
Code:
SHGJ-1000VA

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Product Features & Benefits

SHGJ-1000VA Bidirectional Voltage Converter & Transformer (110V to 220V / 220V to 110V), Reversible Step-Up/Down Power Converter for International Audio, Desktop PCs & Home Appliances, CE & FCC Certified

1. Bidirect

ional Voltage Converter & Step Up & Step Down (Dual-Way)

Seamlessly switch between 220V to 110V step-down and 110V to 220V step-up with a single heavy-duty selector switch. One compact transformer powers both imported American/Japanese appliances and domestic European/Asian equipment globally without redundant hardware.

2. Worldwide Universal Use & Cross-Border Ready

Engineered for international relocations, cross-border business, and global travel. Fully compatible with worldwide 100V-120V and 220V-240V utility grids and 50Hz/60Hz electrical frequencies, eliminating equipment incompatibility across borders.

3. Portable Carry Handle & Ergonomic Handle for Effortless Transport

Heavy-duty integrated carrying handle recessed into the top panel provides balanced center-of-gravity lifting. Move high-capacity toroidal transformers between kitchen counters, workshops, and living areas with comfort and safety.

4. Fire-Resistant Casing & Industrial Heavy-Duty Steel Enclosure

Precision-stamped industrial flame-retardant cold-rolled steel housing shields internal magnetic components from drops, impacts, and thermal hazards. High-dielectric powder coating delivers exceptional insulation and fire resistance.

5. Convective Thermal Dissipation & Air Convection Cooling Architecture

Dual-flank convection cooling louvers create a natural thermal chimney effect, drawing cool ambient air across the toroidal core and exhausting heat without mechanical fan hum. Enjoy silent continuous 24/7 operation.

6. Premium-Grade Materials, CE & FCC Certified with Dependable Quality Assurance

Constructed with ultra-low-loss grain-oriented silicon steel toroidal cores and precision windings for high conversion efficiency. Fully certified under CE and FCC international electrical standards and backed by strict factory quality guarantees.

Step-up/step-down transformer

Automatic-power-off-recovery-switch

Dual-sided air convection cooling

Retractable power cord

Iron protective casing and flame-retardant insulation layer

Exquisite manufacturing process

SHGJ-1000VA Quality Certificate

Technical Specifications

Model Number	SHGJ-1000VA
Rated Capacity (VA)	1000VA
Continuous Working Power	≤ 750W (Recommended for continuous use under 750W)
Peak Surge Capacity	1000W Max
Voltage Direction	220V ⇄ 110V (Dual-Way Reversible Step Up & Step Down Converter)
Input Voltage Range	AC 110V-120V / 220V-240V
Output Sockets & Voltages	1x US 110V 3-Prong + 1x Universal 220V
Core Architecture	Grain-Oriented Toroidal Silicon Steel Core
Cooling Architecture	Air Convection Cooling Vents (Fanless, Silent)
Housing Enclosure	Industrial Flame-Retardant Steel Casing
Ergonomic Handle	Integrated Heavy-Duty Ergonomic Carrying Handle
Circuit Protection	Built-in Push-to-Reset Automatic Circuit Breaker
Safety Certifications	CE & FCC Safety Certified, RoHS
Net Weight & Dimensions	~ 4.8 kg (10.6 lbs) · 21.0 × 16.5 × 14.0 cm
Standard Package Contents	1x Voltage Transformer Unit, 1x Heavy-Duty Grounded Power Cord, 1x Multilingual User Manual & Warranty Card
Manufacturer Quality Pedigree	Backed by Shunhong 38-Year Direct Factory Manufacturing Pedigree (Since 1987) · Strict Dielectric Testing

Compatible Devices & Applications

Recommended Compatible Overseas Appliances

SHGJ-1000VA Recommended products for combination use

‍For prolonged use, it is recommended to use appliances with a power rating of 500W or below.

Hi-Fi audio amplifiers, vintage tube amps & turntable preamplifiers (100W-500W)
Office monochrome laser printers & all-in-one inkjet scanners (300W-600W running)
Sewing machines, sergers & embroidery equipment (100W-300W)

Desktop computer towers, multi-monitor gaming rigs & network NAS servers (200W-650W)
Household food processors, electric juicers & slow masticators (200W-500W)
Sleep apnea CPAP machines, oxygen concentrators & medical nebulizers (150W-450W)

Official Continuous Usage Guideline:

SHGJ-1000VA is recommended for continuous use with appliances under 750W. For motorized devices with startup surges, keeping running power comfortably under 500W guarantees smooth long-term operation.

How to Use This Voltage Converter

SHGJ-1000VA Quick Start Guide

Frequently Asked Questions About Voltage Converters

Q1： Why is the SHGJ-1000VA recommended for continuous operation with appliances under 750W?

A1: Appliances often generate startup surges and power fluctuations. For mid-range appliances like laser printers and audio amplifiers, maintaining a 25% safety margin under 750W ensures that the toroidal core stays cool and prevents thermal tripping during hours of uninterrupted operation.

Q2： Will the SHGJ-1000VA cause background hum or electromagnetic noise when powering Hi-Fi tube amplifiers and turntables?

A2: Virtually hum-free. The SHGJ-1000VA uses a seamless cold-rolled grain-oriented silicon steel toroidal core that confines magnetic flux inside the circular ring with near-zero external magnetic leakage. Audiophiles can enjoy pristine audio fidelity with zero 50Hz/60Hz electromagnetic hum.

Q3： Can the SHGJ-1000VA handle office monochrome laser printers or desktop PC workstations without voltage sag?

A3: Yes, it handles them effortlessly. Laser printers draw sudden current spikes when their heating fuser rollers ignite (around 400W-600W). The genuine 1000VA apparent power buffer absorbs fuser ignition surges without voltage dips, keeping PC power supplies and print controllers fully protected.

Q4： Can medical devices like home CPAP machines and oxygen concentrators run continuously on the SHGJ-1000VA overnight for 8-10 hours?

A4: Yes. Most home CPAP machines and oxygen concentrators consume 150W-450W. The fanless natural convection cooling architecture ensures 100% silent bedside operation without vibrating fan noise, while the flame-retardant cold-rolled steel casing guarantees 24/7 continuous electrical safety.

Q5： What happens if the rear input voltage switch is set incorrectly, and how should it be configured?

A5: Always verify the voltage of your wall outlet before plugging in. If your wall socket is 110V/120V (USA/Canada), set the switch to 110V; if your wall socket is 220V/240V (Europe/China), set the switch to 220V. If set incorrectly, the built-in push-to-reset circuit breaker will trip to prevent component damage. Simply correct the switch position and press the breaker button to reset.