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Xinouhua Power Xinouhua Power
XOH Power high-power DC power supply manufacturing facility in Guangzhou
XOH Power assembly line for programmable AC and DC power supply production
XOH Power quality testing lab with advanced testing instruments

Guangdong · Hong Kong · Macao Bay Area | Est. 20+ Years Industry Experience

High-Power DC Power Supply
Engineered for Global Industry

Guangzhou Xinouhua Electronic Technology Co., Ltd. — delivering precision variable frequency, programmable AC/DC, and energy storage power solutions to automotive, photovoltaic, and testing industries worldwide.

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About XOH Power

Bay Area Precision Engineering,
Global Power Solutions

Guangzhou Xinouhua Electronic Technology Co., Ltd. is located in the core electronic industry belt of the Guangdong, Hong Kong and Macao Bay Area, focusing on the R&D and manufacturing of high-power DC power supply. The company operates 1,200 square meters of modern production space, equipped with 2 standard production lines, and a core technical team of 12 specialists.

With 20 years of industry experience, we strictly follow international standards. All products have passed EU CE certification, building a full-link quality management system spanning research and development, production, and testing — ensuring the excellent performance, safety and stability of every power supply unit we deliver.

As an integrated technology enterprise encompassing R&D, production, sales and technical services, our product philosophy of "high power density, high reliability and high application value" drives us to provide accurate test support and high-stability power system solutions across automotive electronics, electric motors, photovoltaic new energy, and third-party testing laboratory sectors.

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Guangzhou Xinouhua Electronic Technology Co., Ltd. — 1,200 sqm production facility in the Guangdong Bay Area
20+ Years of
Industry Experience
Real-Time Milestones

Numbers That Demonstrate Our Scale & Trust

0
m² Modern Production Space
with 2 Standard Production Lines
0
+ Enterprise Clients Served
Across Global Markets
0
Years of Industry Experience
in High-Power Electronics
0
Core R&D Engineers
& Technical Specialists
Core Product Lines

High-Performance Power Supply Solutions Portfolio

From standard variable frequency to programmable intelligent AC/DC systems — engineered for demanding industrial, automotive, and renewable energy applications.

Standard Variable Frequency AC Power Source by XOH Power
AC Power

Standard & Precision Variable Frequency Power Supply

Delivers stable, adjustable frequency output for motor testing, appliance compliance, and laboratory verification with high waveform fidelity.

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Programmable DC Power Supply for automotive and photovoltaic testing
DC Power

Programmable Intelligent DC Power Supply

Precision-controlled DC output with programmable voltage/current profiles, ideal for EV battery simulation, photovoltaic MPPT testing, and R&D labs.

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AC and DC Withstand Voltage Insulation Tester instrument
Testing Instruments

AC & DC Withstand Voltage Insulation Tester

Comprehensive dielectric strength and insulation resistance testing for electrical safety compliance in manufacturing and third-party laboratories.

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LCR Meter for precision impedance measurement in power electronics
Measurement

LCR Meter & High-Precision Digital Power Meter

Accurate inductance, capacitance, and resistance measurement instruments supporting component characterization and power quality analysis.

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Electronic Load Box for DC power supply load testing
Load Testing

Programmable Electronic Load Box

Simulates real-world load conditions for power supply burn-in, efficiency testing, and battery discharge characterization in production and R&D environments.

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Aging rack for power supply burn-in and reliability testing
Reliability

Energy Storage Variable Frequency & UPS Power Supply

Constant current variable frequency and UPS solutions ensuring uninterrupted, clean power for critical infrastructure and energy storage systems.

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Why Choose XOH Power

Six Pillars of Our Competitive Advantage

Every power supply we manufacture reflects two decades of engineering expertise, rigorous quality control, and a commitment to delivering measurable value to our global clients.

20 Years of Industry Expertise

Two decades of focused R&D in high-power DC and AC power systems, building institutional knowledge that translates directly into product reliability and application precision.

Full-Link Quality Management

From component sourcing through final burn-in testing, every unit passes a comprehensive quality gate system. EU CE certification validates our adherence to international safety and EMC standards.

High Power Density & Reliability Engineering

Our core product philosophy — "high power density, high reliability, high application value" — is not a marketing claim but an engineering mandate. Every design decision optimizes for thermal management, EMI suppression, and long-term MTBF performance. Our 1,200 m² production facility with 2 dedicated assembly lines ensures consistent output quality at scale, while our 12-person technical team provides the engineering depth to handle custom specifications and complex integration requirements.

4 Consecutive Years of Export Growth

Sustained export performance to Europe, North America, the Middle East, and Southeast Asia demonstrates the international confidence in our product quality and technical support capability.

Full Product Life-Cycle Service

Pre-sales application consulting, custom engineering support, on-site commissioning, and post-sales technical service — we cover the complete product lifecycle from specification to decommissioning.

CE Certified & International Standards

All products comply with EU CE certification requirements, ensuring market access across Europe and alignment with global safety and electromagnetic compatibility standards.

1,000+ Enterprise Clients — Proven at Scale

From automotive OEM test benches to photovoltaic inverter validation labs, from third-party testing institutions to electric motor manufacturers, more than 1,000 enterprises across global markets have integrated XOH Power solutions into their critical operations. This breadth of deployment provides us with unmatched application knowledge and the confidence of proven field performance across diverse industrial environments.

XOH Power manufacturing facility — full production floor overview
Manufacturing Excellence

Our Production Process & Quality Control System

A rigorous, multi-stage manufacturing workflow ensures that every power supply leaving our facility meets the highest standards of performance, safety, and long-term reliability.

01

Component Sourcing & Incoming Inspection

Certified components from qualified suppliers undergo 100% incoming quality inspection before entering the production line.

02

PCB Assembly & SMT Production

Precision surface-mount and through-hole assembly on 2 dedicated production lines with automated optical inspection at key stages.

03

System Integration & Wiring

Skilled technicians perform mechanical assembly and wiring harness installation following documented work instructions and torque specifications.

04

Full-Load Burn-In & Final Testing

Every unit undergoes extended burn-in on aging racks, followed by comprehensive electrical testing including withstand voltage, insulation resistance, load regulation, and efficiency measurement.

Inside Our Factory

A transparent look inside our 1,200 m² Guangzhou production facility — where engineering precision meets industrial-scale manufacturing.

Power supply assembly process at XOH Power Guangzhou factory
Assembly
Quality testing station for high-power DC power supply units
Testing
XOH Power standard production assembly line with 2 dedicated lines
Assembly Line
XOH Power factory overview — high-power power supply production environment
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Quality Assurance Infrastructure

Professional Testing Equipment & Instrumentation

Our in-house quality laboratory is equipped with a comprehensive suite of professional testing instruments, enabling full electrical characterization and safety validation of every product we manufacture.

AC Power Source test instrument used in XOH Power quality lab
AC Power Source
AC and DC Withstand Voltage Insulation Tester for safety compliance testing
AC & DC Withstand Voltage Insulation Tester
LCR Meter for inductance capacitance resistance measurement in power electronics
LCR Meter
Electronic Load Box for DC power supply load testing and burn-in
Load Box
High-Precision Digital Power Meter for power quality and efficiency measurement
High-Precision Digital Power Meter
Aging Rack for extended burn-in testing of high-power DC power supplies
Aging Rack
Analog Oscilloscope for waveform analysis in power supply development
Analog Oscilloscope
Digital Oscilloscope for transient response and ripple measurement
Oscilloscope
DC Power Supply product from XOH Power for industrial applications
DC Power Supply
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Certifications & Standards

Quality Management You Can Verify

Our commitment to quality is not self-declared — it is independently certified and systematically enforced at every stage of the product lifecycle.

XOH Power EU CE certification and quality management documentation

  • EU CE Certification

    All core products carry EU CE marking, confirming compliance with European safety, health, and environmental protection standards — enabling direct market access across the European Union.

  • Full-Link Quality Management System

    A documented quality management framework covering incoming material inspection, in-process quality control, final product testing, and post-delivery support — ensuring traceability from component to customer.

  • International Standards Compliance

    Products are designed and tested in strict accordance with applicable international standards, ensuring compatibility with global regulatory requirements across our target export markets.

  • Extended Burn-In & Reliability Testing

    Every unit undergoes full-load aging on dedicated burn-in racks before shipment, screening for early-life failures and ensuring that only field-proven units reach our customers.

Industry Applications

Powering Critical Applications Across Industries

XOH Power solutions are trusted by engineers and procurement teams in demanding industrial sectors where power quality, stability, and reliability are non-negotiable.

Automotive Electronics Testing

ECU validation, component burn-in, and end-of-line testing for automotive-grade electronic assemblies requiring stable, programmable power sources.

Electric Motor Manufacturing

Variable frequency power supplies for motor characterization, efficiency mapping, and production-line testing of AC induction and brushless DC motors.

Photovoltaic & New Energy

Programmable DC sources simulating PV array I-V curves for inverter MPPT testing, battery management system validation, and energy storage R&D.

Third-Party Testing Laboratories

Precision, traceable power sources for accredited testing laboratories requiring stable, low-noise power with comprehensive measurement and data logging capabilities.

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Global Service Network

From the Bay Area to the World

For four consecutive years, XOH Power products have been exported to global markets, providing reliable power support for more than 1,000 enterprises across five continents.

Europe

CE-certified products meeting EU regulatory requirements

North America

Serving US and Canadian industrial and testing markets

Middle East

Supporting energy and industrial sectors across the Gulf region

Southeast Asia

Growing partnerships with manufacturers across ASEAN markets

Greater China

Headquartered in the Guangdong-HK-Macao Bay Area innovation hub

XOH Power global export markets — power supply solutions shipped worldwide

A Trusted Partner for Global Procurement Teams

For four consecutive years, XOH Power has maintained consistent export growth to Europe, North America, the Middle East, and Southeast Asia. Our products are chosen by procurement engineers who require verifiable quality credentials, reliable lead times, and responsive technical support from a manufacturer with genuine engineering depth.

Our Bay Area location provides direct access to the world's most advanced electronics supply chain, enabling us to source premium components and maintain the production flexibility needed to respond to custom specifications and urgent project timelines.

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Client Feedback

What Our Clients Say About XOH Power

Trusted by engineers and procurement professionals across 1,000+ enterprises worldwide — here is what our clients consistently tell us.

★★★★★

"The programmable DC power supply we sourced from XOH Power has been running in our EV battery test lab for over 18 months without a single failure. The voltage regulation stability and remote programming interface exceeded our specifications. Highly recommended for serious laboratory applications."

M. Fischer Senior Test Engineer, Automotive OEM — Germany
★★★★★

"We evaluated three suppliers for our photovoltaic inverter test bench project. XOH Power won on technical merit — their understanding of MPPT simulation requirements and the quality of their engineering documentation gave us confidence. Delivery was on schedule and the commissioning support was excellent."

R. Al-Mansouri Engineering Manager, Solar Energy Company — UAE
★★★★★

"As a third-party testing laboratory, we require power sources with documented traceability and low noise performance. XOH Power's variable frequency power supplies meet our accreditation requirements and the after-sales technical support has been genuinely responsive — a rare quality in this product category."

T. Nguyen Laboratory Director, Accredited Testing Institute — Vietnam
XOH Power production facility background — contact us for power supply solutions

Ready to Power Your Next Project?

Connect with our engineering team to discuss your power supply requirements. We provide application-specific recommendations, custom specifications, and competitive pricing for volume orders.

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