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Discover the ultimate selection of premium products with one-stop destination for innovation and quality.Whether you’re looking to improve your motor efficiency, revolutionize your pumping system, or enhance your solar power system.

From cutting-edge electric appliances to solar-powered solutions, our offerings promise unmatched performance and reliability. Embrace smart technology with our advanced home automation systems, optimize energy use with our efficient photovoltaic accessories, and ensure seamless operations with our precision variable frequency drives.

Every product is crafted with care, meeting the highest standards to bring you the best in class experience. Explore our full spectrum of solutions tailored to fulfill your needs and transform your vision into reality. Connect with us today and step into a world where every purchase tells the story of superior quality and exceptional value. We’re here to support your journey, providing the tools for success and the power to innovate.

Industrial Automation and Control

USFULL offers intelligent drive solutions that simplify industrial automation and improve system performance. Our Variable Frequency Drives (VFDs) are designed to optimize motor control, reduce energy consumption, and adapt to diverse industrial needs.

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FU9000D General Type High Performance VFD

The FU9000D general-purpose VFD is user-friendly and easy to maintain. It offers key features like energy saving, torque boost, voltage stabilization, speed control, motor protection, and traverse control.

FU9000MD Economic Type VFD

FU9000MD series VFD mini type frequency inverter is a general-purpose high performance current vector control ac drive.

FU9000H Crane & Hoist VFD

USFULL FU9000H series variable frequency drives are specially designed for cranes and hoists, many special software functions are provided in the VFD to achieve the best crane operation.

FU9000C Air Compressor VFD

USFULL FU9000C Series VFD (Variable Frequency Drive) is a tailored solution to Air Compressor. The speed of the air compressor motor is related to the performance of the air compressor.

Solar Pump Inveter

USFULL solar pump inverter efficiently converts DC power from solar panels into AC to drive water pumps. Designed for solar-powered water pumping systems, it’s ideal for agricultural irrigation, livestock watering, and rural water supply. Our inverters ensure stable performance, energy efficiency, and reliable water delivery even in remote areas.

FU9000SI-V3 Solar Pump Inverter

FU9000SI-V3 Solar Pump Inverter is newly developed high performance and high efficiency inverter, specially designed for AC pump in solar pumping system.

FU9000SI-H IP65 Solar Pump Inverter

USFULL water proof solar pump inverter is widely used indoors and outdoors. The protection grade is IP65, waterproof and dustproof.

FU9000SI-A3 Solar Pump Inverter

The USFULL FU9000SI-A3 Solar Pump Inverter is a high-performance, efficient solution for solar irrigation. It maximizes solar energy use to reliably power your pump system.

FU9000SI-Classic Solar Pump Inverter

USFULL FU9000SI-Classic Solar Pump Inverter is newly developed high performance and high efficiency inverter, specially designed for AC pump in solar pumping system.

Solar Energy Equipments

USFULL offers reliable solar accessories including DC breakers, SPDs, fuses, and combiner boxes—designed to protect and optimize your solar power system. Our solutions ensure safety, easy installation, and stable performance for residential, commercial, and agricultural projects.

Combiner Box

The solar PV combiner box is waterproof and dustproof, offering overload, lightning, and overcurrent protection. It is suitable for long-term use both indoors and outdoors.

DC Mini Circuit Breaker

DC Mini Circuit Breaker is a key safety device for solar power systems. It protects DC circuits from electrical faults, ensuring safe and efficient operation between solar panels, inverters, and other components.

DC Surge Protection Device

USFULL DC Surge Protection Device is PV standard surge protect device, which protects PV system and inverter from thunder and lightning, thus protect the electrical appliance.

DC Fuse

USFULL DC Fuse is a safety device that protects electrical circuits from too much current. It breaks the circuit when current is too high, preventing damage and fire risks. It is commonly used in DC systems like solar power setups.

DC Molded Case Circuit Breaker

USFULL DC Molded Case Circuit Breaker is a critical component in electrical systems designed to protect circuits from overcurrents such as short circuits and overloads.

DC Isolator Switch

The USFULL DC isolator switch safely disconnects DC circuits from power sources, protecting systems and people during maintenance or emergencies. It’s commonly used in solar PV and wind power systems.

PV Connector

USFULL PV Connector, users can directly connect solar panel toinverter, without the consideration of anti-reverse device.

Over & Under Voltage Protector

Over & Under Voltage Protectors safeguard electrical equipment by monitoring voltage levels. They disconnect the power supply if the voltage is too high or too low, preventing damage and ensuring stable operation.

Low Voltage Products

USFULL provides smart low voltage solutions for safe and efficient power distribution. Our range includes circuit breakers, fuses, contactors, and control components—engineered for reliable performance across industrial, commercial, and solar applications. With certified quality and flexible customization, USFULL helps you build systems that are secure, scalable, and easy to maintain.

AC Circuit Breaker

AC Circuit Breakers are used in lighting and motor distribution systems. They provide reliable protection and can handle occasional switching of electrical circuits under normal conditions, ensuring safety and stable operation.

RCCB

RCCBs (Residual Current Circuit Breakers) protect people from electric shocks by detecting and quickly cutting off leakage currents. They help prevent electrical fires and ensure safety in homes and buildings.

AC Surge Protection Device

AC Surge Protection Devices (SPDs) protect electrical systems from sudden voltage spikes caused by lightning or switching. They help prevent damage to equipment by diverting excess voltage safely to the ground, ensuring stable and safe operation.

AC Contactor

AC contactors are control devices that switch on and off non-inductive or low-inductive loads, such as household appliances, resistance heaters, and small motors. They enable safe and reliable remote control of electrical circuits in home and light commercial use.

Contact Us to Customize Your Solution!

Unlock the power of the sun with custom-crafted solutions. Connect with us today and step into a brighter, more efficient tomorrow tailored just for you!

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USFULL Electrical Products Manufacturer

Top-Grade Products

Established in 2005, Zhejiang Fullwill Electric Co., Ltd. (USFULL) is a leading manufacturer specializing in solar pumping inverters, variable frequency drives (VFDs), combiner boxes, solar accessories, and a wide range of low-voltage electrical products. Our company is certified with ISO9001, CE, IEC, TUV, and INMETRO, ensuring the highest quality standards, backed by a comprehensive series of testing reports.

With over 20 experienced R&D professionals, we are committed to continuous innovation and technical advancement. Over the years, we have built a global presence, exporting our products to more than 90 countries and regions, including the United States, Canada, Russia, and many others. We proudly collaborate with over 200 business partners worldwide, catering to a diverse range of industries.

Driven by a vision of excellence, USFULL is dedicated to providing customized product solutions that enhance user satisfaction. We focus on three core areas: electric drives, photovoltaic water supply systems, and low-voltage electrical solutions. We strive to become a century-old enterprise known for innovation and reliability.

Send Us Your Inquiry Today

Self-Owned Factory

With our state-of-the-art automated factory and a professional R&D team of skilled technicians, we develop and manufacture high-quality products at reduced costs while ensuring efficient delivery

Strict Quality Control

As manufacturing professionals, we have a dedicated quality control department with rigorous testing procedures to ensure superior product reliability and performance.

Customized Solutions

At USFULL, our skilled design team provides comprehensive customization services, tailoring VFD solutions to meet all your requirements while offering expert guidance and support.

WHY CHOOSE US?

Why Choose USFULL Products?

Advanced Automated Production

USFULL is equipped with a wide range of automated production facilities, ensuring consistent product quality and efficient manufacturing. Every unit that leaves our factory meets strict consistency standards.

20+ Years of Industry Experience

Founded in 2005, Zhejiang Fullwill Electric Co., Ltd. (USFULL) has over two decades of experience in producing Solar Pumping Inverters, Variable Frequency Drives, Combiner Boxes, and various low voltage electric products.

Certified for Global Standards

As a government-supported high-tech enterprise, USFULL holds ISO9001 quality management system certification, along with EU CE, IEC, TUV, and INMETRO certifications—ensuring our products meet international standards and requirements.

Comprehensive Customization Services

We offer full customization options tailored to our clients’ needs—from logo printing and color customization to developing new product molds. Whether you need OEM or special design support, USFULL has you covered.

Excellent R&D Team

Our team includes over 20 highly-educated engineers, selected through rigorous testing and qualification processes. Backed by a total staff of 200+, our R&D team drives continuous product innovation and improvement.

Rigorous Quality Testing

Every product undergoes a series of strict inspection and testing procedures before delivery. This ensures that each unit meets our high-quality standards and performs reliably in real-world applications.

POPULAR CATEGORYS

USFULL specializes in variable frequency drive, solar pumping inverter and dc accessories. The product technology research and development is constantly updated. The design is patented. We only manufacture products that make customers happy.

Production Capacity

USFULL’s manufacturing base covers over 15,000 square meters and houses more than a dozen production lines, including lines for variable frequency drives, photovoltaic accessories, SMT, and automatic PCB coating. Equipped with advanced automation equipment, our facility significantly boosts productivity while ensuring high product quality and stable output. Modern production technology is the backbone of USFULL’s consistent performance and reliable supply capacity.

OUR CERTIFICATION

We believe that leadership and excellence in supplying our customers with quality products is essential to our long-term competitiveness, that’s why we incessantly invest significant resources to always obtain the required highest standards of quality and reliability.
The certifications USFULL has gained throughout the years are a visible proof of our commitment: TUV, CE, INMETRO, IEC, and more.
Feel free to contact us should you need further details or clarifications on the certified quality of our products.