About W7

monocrystalline solar panels、bifacial solar panels and 10 20 30 240kw solar system wholesale

Professional PV Modules Supplier

We are dedicated to producing and manufacturing Solar PV products, as well as developing and constructing PV power stations. Our goal is to promote the use of renewable energy and create a sustainable and eco-friendly environment for all. With over 16 years of experience in manufacturing solar modules, our products have reached more than 50 countries and regions worldwide.

Our products cover: PV ModulesSolar SystemInverter

Certified Company

Excellence Support

Satisfied Guaranteed

High Efficiency

Our Core Values

Customers First

With advanced service awareness, constantly exceed customer expectations, to achieve customer win-win, the formation of service reputation.

Pursuit of Quality

Integrity and reliability is the lifeblood of enterprise development, quality to win we tightly control every step of the manufacturing process, fensuring the highest level of quality.

Development Innovation

We seek excellence. We are motivated by the continuous improvements, Committed to innovative research and development in order to offer solutions to our customers.

Certificates List


WinSeven Solar PV modules have been certifited by TUV, CEC, CE, INMETRO, RETIE ISO19001, ISO14001, OHSMS18001, CQC etc domestic & internation

Q & A

We accept TT or L/C

1.Negotiate the preparation time according to the quantity of goods.
2.The time from Ningbo port to your port is about 15-30 days.

1 You pay the 30% deposit to us.
2 We prepare the product for you after we receive your money.
3 We will take photos/video for you before shipping.
4 You pay the 70% balance to us before shipment.
5We commonly use sea transportation, because we are in Ninbo, close to Ningbo Port.
6 We send out all the documents to you to clean the customs and get the product.
7.The shipping company will contact you when the products arrive at your port. You can ask them to help with customs clearance.
8 Everything is done now.

The above is the regular process for your reference.

1.Team Advantage: Complete solar PV industry chain, including crystalline silicon slices, solar cells, modules, manufacturing, integrated systems, project development, construction, and operation.

2.Quality Assurance: Automated production line meeting international standards, ensuring flawless product quality.

3.Service Advantage: Dedicated to providing tailored solutions to our valued customers, matching their applications and requirements.

4.With the support of customers in the solar industry, WinSeven solar will continue to innovate and progress, driven by new demand, technology, and energy. We strive to deliver professional, reliable, and efficient outdoor solutions.

W7 offers a 25-year Linear power output warranty. In the event of any quality concerns, please reach out to the supplier for warranty details. Feel free to contact our Customer Services Specialist for further information on our warranty.

1.Attenuation:Double glass solar module: 30 years attenuation is about 0.5%, double glass module has a higher life cycle of power generation, 21% higher than ordinary components.

2.Wear resistance:Double glass solar module: the glass of the double glass module has high wear resistance, and the insulation of the glass body is better than the backplane, which can meet the higher system voltage

Solar Panel Factory Scene

talesun pv module
tongweisolar 1
JA Solar
GCL solarmodul