About PVLinkTech — A Waterproof Connector Company Since 2015

We design and manufacture reliable waterproof connectors and custom cable assemblies for energy storage, power distribution, industrial equipment, and demanding outdoor applications.

  • Experienced manufacturer of waterproof power connectors and cable assemblies
  • Solutions for battery energy storage, industrial equipment, and power distribution
  • Current ratings and connector configurations tailored to application needs
  • Support for power, signal, and data connectivity in integrated solutions
  • Custom connector layouts, cable assemblies, branding, and packaging available
  • Quality-focused production and model-specific technical documentation
  • Responsive engineering and sales support from project evaluation to delivery
Explore Our Products

About PVLinkTech

PVLinkTech company showcase

Reliable Connectivity Solutions Since 2015

Established in 2015, Suofanta Technology Co., Ltd. operates under the PVLinkTech brand. We focus on providing reliable connectivity products and practical technology solutions for customers and partners worldwide.

At PVLinkTech, we place product quality, manufacturing efficiency, and continuous improvement at the center of our work. We carefully consider the requirements of each project and provide flexible solutions for different application needs.

Through close collaboration with distributors, business customers, and project partners, we provide responsive communication and dependable support throughout the process—from product selection and customization to production and delivery.

Our goal is to create long-term value through dependable products, professional service, and lasting partnerships. PVLinkTech is committed to supporting customers with solutions that meet real-world project requirements.

2015YEAR

Established

500+

Custom Connector Projects

IP67/ IP68

Waterproof Solutions

30+

Countries Served

Our Manufacturing Commitment
Rigorous Quality Control
Our facility enforces strict ISO 9001 quality standards and tests every unit before shipment.
Advanced Production Lines
Automated production systems ensure precision, consistency and efficiency.
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Reliable Global Delivery
A strong supply chain helps us achieve consistent on-time delivery worldwide.
Sustainable Manufacturing
Energy-efficient equipment and responsible material usage support long-term sustainability.
Your Trusted Manufacturing Partner
We combine advanced technology with skilled craftsmanship to deliver dependable manufacturing solutions.
pvlinktech research and development team

PVLINKTECH INNOVATION

R&D Team

pvlinktech has a professional R&D team that gets involved from the earliest stages of customer design, understands specific requirements, and delivers practical product solutions. We provide tailored product design, 2D and 3D drawings, 3D-printed samples, early-stage structural simulation and efficient development support—helping customers shorten development cycles and reduce costs.

Mold Design
3D Drawing
LOWER MOQ RISK — FROM 1 PIECE FEWER PROJECT DELAYS — 3-5 BUSINESS DAY DISPATCH BUY THE RIGHT SPEC — TECHNICAL SUPPORT CUSTOM FIT WHEN STANDARD ISN’T ENOUGH

Solar Energy Storage Connector Manufacturing Capabilities

As a solar energy storage connector manufacturer, PVLinkTech controls every key production step—from in-house tooling and precision stamping to injection molding, automated assembly and final inspection.

品质检验与设备展示

How We Verify Every Connection

From first-article verification to final inspection, our in-house testing process evaluates the electrical performance, sealing reliability, mechanical durability, and safety of our waterproof connectors before mass production and shipment.

Automatic insertion and extraction testing equipment

Automatic Insertion & Extraction Tester

Temperature rise and current testing equipment

Temperature Rise & Current Tester

Voltage testing equipment

Voltage Tester

Horizontal plug-in testing equipment

Horizontal Plug-In Tester

DC resistance and insulation resistance testing equipment

DC & Insulation Resistance Tester

IP68 waterproof testing equipment

IP68 Waterproof Tester

Glow-wire testing equipment

Glow-Wire Tester

Leakage tracking testing equipment

Leakage Tracking Tester

Horizontal and vertical flame testing equipment

Horizontal & Vertical Flame Tester

Constant temperature and humidity testing equipment

Temperature & Humidity Tester

Four Areas of Product Verification

Electrical Testing

  • Contact resistance
  • Insulation resistance
  • Dielectric strength
  • Voltage and current performance

Mechanical Testing

  • Insertion and extraction force
  • Connector retention force
  • Cable pull strength
  • Repeated-operation durability

Environmental Testing

  • Waterproof performance
  • Temperature cycling
  • Humidity exposure
  • Long-term sealing stability

Safety Verification

  • Flame resistance
  • Electrical protection
  • Product-specific IP protection
  • Final inspection before shipment

Certification & Patents

Our commitment to excellence is demonstrated through internationally recognized certifications and proprietary technologies. PVLinkTech products are certified to meet global safety and performance requirements, while our patented connector solutions showcase our dedication to innovation. These achievements enable us to deliver reliable solar connectors, waterproof connectors, and energy storage connection systems to customers around the world.

ISO certification document
UL certification document
SAA certification document
CE certification document
Design patent certificate
EUIPO design patent certificate
Additional certification document
Additional certification document
Global Customer Feedback

Trusted by Solar and Industrial Professionals

Feedback from installers, distributors, and engineering teams worldwide.

4.7 / 5

Average customer rating

Based on customer reviews

Customer review

48*******9A

Grabbed a bulk order of these IP68 waterproof connectors for a commercial outdoor lighting project last month. We've had some crazy heavy rain since, and they've held up perfectly. Solid build quality and the threading is smooth as butter.

Sarah Jenkins

Customer review

22*******1B

Swapped out our old MC4 connectors for PVLinkTech after dealing with constant sealing failures from a cheaper brand. The locking mechanism on these feels ten times more secure. Will definitely be reordering for our next solar farm.

Michael Ross

Customer review

77*******5K

Sehr solide verarbeitet. Wir verwenden die IP68-Steckverbinder inzwischen standardmäßig in Außenanlagen. Die Dichtungen sind äußerst robust, und die Montage geht schnell von der Hand. Die Lieferung nach München war zügig.

Hans Müller

Customer review

12*******4D

These waterproof junction boxes are built like a tank. Thick plastic and the rubber gaskets seal up super tight. Docking one star because the shipping box got a little banged up on arrival, but the parts inside were flawless.

James Miller

Customer review

15*******2X

Been running these energy storage connectors on our commercial battery setups up here in cold weather. They've performed reliably under sustained use, with no issues during installation or operation. Outstanding value for the money.

Robert Smith

Customer review

00*******0Z

The MC4 solar connectors work fine and snap together tightly. However, shipping took almost three weeks to reach us in California. The product is great, but they really need to sort out the shipping logistics.

D. Morgan

Customer review

44*******3F

Ces boîtes de dérivation étanches sont d'excellente qualité. Nous les utilisons pour un système d'irrigation agricole, et l'étanchéité reste fiable même après plusieurs mois d'exposition aux intempéries. Je les recommande sans réserve.

Jean Dupont

Customer review

99*******3C

Finding dependable industrial circular signal connectors at a fair price can be difficult. These have been a strong choice for our setup: sturdy pins, a secure fit, and consistent build quality.

David Chen

Customer review

99*******1Q

We've used these energy-storage plugs on battery systems under normal operating loads, and they have been reliable. PVLinkTech also sent the requested specification drawings promptly.

Liam Wilson

Customer review

88*******2T

These circular signal connectors have worked well in our factory-automation project. The build quality is excellent; they cost slightly more than local alternatives, but the additional durability justifies it.

William Turner

Customer review

31*******9N

Degelijke waterdichte lasdozen. Ze zijn eenvoudig te installeren en de wartels sluiten de kabels zeer goed af. Ideaal voor onze tuinverlichting en duidelijk steviger dan standaardmodellen uit de bouwmarkt.

Lars Jansen

Customer review

55*******5E

Ordered hundreds of these IP68 waterproof connectors for our marine gear. No leaks, no corrosion. Solid consistency across every single batch. Will keep buying from them for sure.

Emily Carter

Customer review

18*******2Y

We install off-grid solar systems in Alberta, and PVLinkTech's MC4 connectors have performed reliably through freezing winters. They remain flexible and show no cracking, unlike lower-cost alternatives.

Alex Thompson

Customer review

66*******1G

Super heavy duty connectors, perfect for custom battery builds. Gaskets seal up tight. Only hitch was the spec sheet was missing in the box, but their support emailed it over within minutes. Top notch service.

Alan Grant

Customer review

56*******2M

Ottimi connettori circolari, ben realizzati. Li usiamo sui nostri macchinari industriali: i contatti sono precisi e la scocca è molto robusta. Il rapporto qualità-prezzo è competitivo e acquisteremo di nuovo.

Marco Rossi

Customer review

49*******7L

Put up about 50 of these junction boxes on a commercial roof last summer. Just went back up to check on things after a series of brutal storms, and everything inside is bone dry. You can't beat that peace of mind.

Kevin Brooks

Customer review

46*******8S

De här IP68-kopplingarna är robusta. Vi använder dem i krävande utomhusmiljöer och har inte haft några läckage. Supporten hjälpte oss snabbt när vi hade tekniska frågor.

Erik Johansson

Customer review

55*******4R

No complaints here. Used these energy storage connectors on our newly deployed backup battery banks. The connection feels solid and reassuring once installed. Highly recommend PVLinkTech for reliability.

R. Parker

Frequently Asked Questions About PVLinkTech

Learn more about PVLinkTech, a manufacturer of waterproof connectors, industrial connectors, solar connectors, energy storage connectors, and custom cable assemblies for global OEM and project customers.

Who is PVLinkTech and what does the company manufacture?

PVLinkTech is the connector brand of Xinyi Suofanta Technology Co., Ltd., a manufacturer specializing in waterproof connectors, industrial connectors, solar connectors, energy storage connectors, and custom cable assemblies since 2015. We support OEMs, distributors, and project customers with product selection, engineering evaluation, customized connector solutions, production, and delivery.

Is PVLinkTech a waterproof connector manufacturer or a trading company?

PVLinkTech is a manufacturer. We develop and produce connector and cable assembly solutions for applications that require reliable electrical connections in demanding environments. Our team supports customers from technical evaluation and sample approval through mass production and shipment.

What types of waterproof connectors and cable assemblies do you offer?

Our product range includes IP-rated waterproof connectors, waterproof junction boxes, MC4 solar connectors, energy storage connectors, industrial circular connectors, and custom cable assemblies. Product specifications can be selected or developed according to electrical, mechanical, and environmental requirements.

Can PVLinkTech provide OEM and ODM connector solutions?

Yes. We support OEM and ODM connector projects, including custom connector configurations, cable lengths, wire specifications, colors, logos, packaging, and selected structural modifications. Our engineering team can provide technical evaluation, 2D and 3D drawings, prototype support, and first-article samples when needed.

How does PVLinkTech control connector quality?

Quality control is managed according to the product specification and intended application. Available testing may include contact resistance, insulation resistance, voltage and current performance, insertion force, cable pull strength, temperature rise, flame resistance, and waterproof testing. Please contact us to confirm the testing requirements for a specific model.

What certifications are available for PVLinkTech products?

Certification and compliance documentation may include CE, UL/cUL, TÜV, SAA, and RoHS, depending on the product model and target market. Please provide the product model, application, and destination market so we can confirm the applicable certificates before ordering.

Can I request connector samples or custom prototypes?

Yes. Samples and small-quantity orders are available for many standard connector products. For custom cable assemblies and customized connector projects, we can arrange prototypes or first-article samples for technical and functional evaluation before mass production.

Does PVLinkTech support international shipping and global projects?

Yes. PVLinkTech works with distributors, equipment manufacturers, contractors, and project customers worldwide. Shipping methods, lead times, export documentation, and packaging requirements are confirmed according to the destination, product type, and order quantity.

Let’s Build Your Connection Solution

Get the Right Connector for Your Project

Share your application, specifications, and estimated quantity. PVLinkTech will help you select a practical connector solution for waterproof, solar, energy storage, signal, push-wire, or custom cable assembly applications.

  • Low MOQ & Sample Orders Standard products are available from just 1 piece for testing, technical evaluation, and small trial orders.
  • OEM & ODM Manufacturing Custom connector and cable assembly solutions based on your project specifications and application requirements.
  • Product Selection Support Get help selecting models, IP ratings, materials, cable sizes, current ratings, and connection types.
  • Bulk Order & Wholesale Supply Flexible production support for distributors, contractors, installers, and equipment manufacturers.
  • Fast Quote Response Send us your project information and our team will recommend suitable product options and provide a quotation.

Request a Quote

Submit your product requirements, application details, and estimated quantity. Our team will review your request and recommend a suitable connector solution.

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