AC Voltage Stabilizer, Servo & Relay Voltage Regulator, SCR Thyristor AVR Supplier - Sanyuan Huineng

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To be the world’s top stabilizer manufacturer.

To be the world’s top stabilizer manufacturer.

National Standard Drafter

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National Standard Drafter

We are the standard drafter of the voltage stabilizer industry in China. Our founder, Mr. Hu, is a member of the China Power Supply Society.

Industry Champion

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Industry Champion

we’ve been recognized by the government as an Industry Champion — a leader in our field.

Founded in 2004

20 +years

Founded in 2004

Modern factory

50000

Modern factory

Strong team power

400 personnel

Strong team power

Renowned worldwide

60 +Countries

Renowned worldwide

AC Voltage Stabilizer, Servo & Relay Voltage Regulator, SCR Thyristor AVR Supplier - Sanyuan Huineng

Let’s Build Business Together—— For Distributors, Dealers & Partners Let’s Build Business Together
—— For Distributors, Dealers & Partners

We warmly welcome inquiries from distributors and business partners. Retail services are not available at this time.

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What we offer?

Relay voltage stabilizers

This series offers outstanding adaptability, ensuring reliable operation even in extremely low voltage conditions (as low as 45V) and highly fluctuating voltage environments.

Relay voltage stabilizers
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We Are Irreplaceable — Here’s Why

For 20 years, we have been pushing the boundaries of voltage stabilizer performance and quality. Unable to find components that meet our demanding standards, we chose to develop and produce every critical part ourselves. We believe true excellence comes from steady progress and unwavering dedication. After 20 years of relentless R&D, our commitment remains unchanged.

Strong Environmental Adaptability

The product has undergone testing in various extreme environments, ensuring excellent adaptability to different conditions and delivering an exceptional user experience.

Living Room
Bedroom
Office
Factory
  • Living Room

    Easily powers all household appliances with smooth startups. Ensures every appliance operates under optimal voltage conditions, delivering the best user experience.

  • Bedroom

    Our product is the perfect companion for air conditioners. No more worries about startup failures, poor cooling, or unexpected shutdowns caused by unstable voltage. Some of our models also offer silent operation, providing the best sleep experience.

  • Office

    With numerous computers, printers, and communication base stations, our products ensure smooth company operations — eliminating risks caused by voltage issues.

  • Factory

    We have sold millions of industrial three-phase and single-phase voltage stabilizers. Our proven reliability has earned high praise from our customers. Maintain efficient factory operations and prevent costly equipment damage caused by voltage problems.

We test every single product

  • Incoming Quality Control
  • Outgoing Quality Control
  • In-Process Quality Control
  • Final Quality Control
  • Unique Product ID for tracing every details
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Our Support

We provide full support for all after-sales needs. Once the product is delivered, we take complete responsibility for any after-sales issues.

What our clients say

Comments from clients we have served

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United Kingdom
"After 10 years of working together, we have 100% trust in PITBULL.Many users have told us they tried 5 or 6 stabilizers and still couldn't get their air conditioners to work properly, but just one PITBULL solved everything. We'll continue to work with them in the future - that's how confident I am in them."
United Kingdom

United Kingdom

Indonesia
"I didn't sell stabilizers at first. Partnering with PITBULL was our first try in this category.Now, this product has become one of our main offerings."
Indonesia

Indonesia

Nigeria
"Since partnering with PITBULL, I no longer consider other suppliers. We found PITBULL after facing quality issues with our previous supplier. It's been 4 years now, and the collaboration has been great."
Nigeria

Nigeria

Turkmenistan
"PITBULL's approach to working with agents is very professional. In our country, many customers see 'PITBULL' as synonymous with stabilizers. As long-time agents, we feel very assured about this partnership. It's not just about business anymore; we've built a strong friendship over the years."
Turkmenistan

Turkmenistan

FROM OUR BLOG

News & Articles Blog

19 Jun 2025

What Is “Delay Time” and Why Does It Matter?

When using a voltage stabilizer, you might notice a short pause before it begins supplying power after being turned on or when the power comes back — this is called the delay time. In our stabilizers, we offer two delay modes: Short delay: ...

11 Jun 2025

Why Our Voltage Stabilizers Help You Save More on Electricity

Many of our customers have shared an unexpected discovery: After switching to our voltage stabilizers, their electricity bills dropped by 10% to 18%. But why would changing from a regular stabilizer to ours lead to lower energy consumption? The an...

19 Jun 2025

2004 to 2024: Writing the Future

In 2004, our journey began. Mr. Hu, a former aircraft engineer and a national standards committee member, founded Quzhou Sanyuan Huineng Electronics Co., Ltd. Driven by a deep passion for power regulation technology, he envisioned building reliable...

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