Longi High-Quality Solar Panels

Certified to UL/EN/IEC standards at the best prices in Thailand

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Longi High-Quality Solar Panels

Why Choose Longi Solar Panels

LONGi Solar is a world-leading solar panel manufacturer with high efficiency and reliability

World-Class Quality

Longi is a world-leading brand trusted in the solar energy industry, manufactured from high-quality materials

High Efficiency

Longi solar panels have high power generation efficiency, helping produce more electricity

Extended Warranty

Longi offers a 12-year product warranty and up to 30-year power output performance warranty

Longi High-Quality Solar Panels

Choose high-quality Longi solar panels with authentic product warranty and expert consultation

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LONGi Technical Info
Maximum efficiency 22.6%
PERC Half-cell Technology
Bifacial Technology
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About Longi Solar

About Longi Solar

LONGi Solar is the world's leading solar panel manufacturer, recognized for innovation and product quality. Founded in 2000, the company focuses on research and development of Monocrystalline Silicon technology.

Longi solar panels have high efficiency in electricity generation and are highly durable in various environments, suitable for both residential and large-scale solar energy projects.

#1 Rank
In Mono cell production
30+ Years
Performance warranty
70+ GW
Installed worldwide

Longi Solar Panel Customers

Reviews from actual users

"Longi panels are excellent quality. Used for 1 year with consistent power generation. Great value for investment. Better price than elsewhere."

W
William S.
Solar home owner

"Installed Longi panels at home. Generates electricity very well, even on cloudy days. Impressed with the quality and after-sales service."

P
Patricia K.
Solar system customer

"Used Longi panels for solar farm project. Good quality panels, durable, high power generation efficiency. Highly recommend."

P
Peter L.
Solar installation contractor

Frequently Asked Questions

Popular questions about Longi solar panels

Longi solar panels come with a 12-year product quality warranty and a 25-year power output performance warranty. The warranty guarantees that efficiency will not drop below 84.8% after 25 years of use, ensuring quality and long-term investment value.

Longi solar panels have a lifespan of over 30 years while maintaining good power generation efficiency. Testing and certification from multiple institutions confirms that Longi panels have high environmental durability, resistant to wind, snow, and weather corrosion, making them a worthwhile long-term investment.

Yes, Longi solar panels can be installed on both roofs and ground. They come in various models suitable for different applications, whether it's residential rooftops, commercial buildings, factories, or large-scale solar farms, with appropriate strength and weight.

QES Energy Cons sells 100% authentic Longi solar panels. We import products directly from the manufacturer with proper quality certificates and product warranties. Customers can verify the serial number of the solar panels with Longi company for quality assurance.

QES Energy Cons can sell Longi solar panels at lower prices than elsewhere because we import products in large quantities, resulting in lower costs. Additionally, we have efficient cost management policies and reduce operational expenses to pass price benefits directly to customers.

Ready to Install Longi Solar Panels?

Interested in consultation or free quotation? Contact QES Energy today

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