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Solar Panel Manufacturer
China Solar Panel Supplier
Joinsun stands as a leading distributor of premium photovoltaic (PV) products brands in China. With an 8-year solid partnership with JA Solar, it has secured the title of China Regional Sales Champion for multiple years. Currently, Joinsun offers JA Solar’s full product lineup, including the high-performance Deep Blue 4.0 Pro and 5.0 series—both are renowned for exceptional energy conversion efficiency, outstanding durability against harsh weather, and superior long-term power generation stability, making them ideal choices for large-scale PV projects.
JA Solar Panel
JA Solar prioritizes R&D to drive efficiency and sustainability. Their DeepBlue 5.0 modules, launched in 2025, reduce the levelized cost of electricity (LCOE) by up to 4.3% compared to previous generations.
DeepBlue 4.0 JA Solar Panel JAM78D40 MB 645W
DeepBlue 4.0 JA Solar Panel JAM72D40 LB 615W
DeepBlue 4.0 JA Solar Panel JAM72D40 LB 610W
DeepBlue 4.0 JA Solar Panel JAM72D40 LB 605W
DeepBlue 4.0 JA Solar Panel JAM66D46 LB 720W
DeepBlue 4.0 JA Solar Panel JAM66D46 LB 715W
DeepBlue 4.0 JA Solar Panel JAM66D46 LB 710W
DeepBlue 4.0 JA Solar Panel JAM66D45 LB 630W
Jinko Solar Panel
Jinko Solar boasting over 5,500 global patents (731 for N-type TOPCon tech) and 10+ manufacturing bases worldwide, it consistently leads industry standards and holds top ratings like PV Tech’s AAA and BloombergNEF’s Tier 1.
Solar Panel by watt
Solar panels stand out as a versatile energy solution, fitting both residential rooftop needs and commercial/industrial (C&I) demands with high efficiency and flexible sizing.
Solar Panel by cell
Solar panels stand out as a versatile energy solution, fitting both residential rooftop needs and commercial/industrial (C&I) demands with high efficiency and flexible sizing.
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What is the relationship between Joinsun and Jubo Nengyuan?
Joinsun is a wholly owned subsidiary of Jubo Nengyuan, specializing in the global sales and distribution of photovoltaic (PV) supply chain products.
What products does Joinsun offer?
Joinsun provides a complete range of high-quality PV products, including:
– Solar modules
– Inverters and power optimizers
– Mounting systems (ground-mounted and rooftop)
– PV cables, connectors, and other accessories All products comply with international standards such as TÜV, UL, IEC, and CE.
How does Joinsun ensure product quality?
Joinsun holds official authorization from leading Tier 1 brands, ensuring genuine factory-direct products backed by complete manufacturer warranties.
What are Joinsun‘s main advantages in the global market?
Tier 1 brands ，We mainly offer Tier 1 brands, particularly JA Solar. We have been the top sales champion in the China market for many years.
Competitive pricing，
Fast delivery,
Customized solutions, for large-scale projects and distributors
Responsive after-sales support and warranty services
What warranty terms does Joinsun provide?
Tier 1 brands, ensuring genuine factory-direct products backed by complete manufacturer warranties.
Depending on the product type,
Up to 30-year linear power output warranty for solar modules.
5–10-year product warranty for inverters and other equipments.
What does Tier 1 PV Panels Mean?
Tier 1 PV Panels is a BloombergNEF manufacturer rating, not a product label. lt identifiescompanies with a proven, bankable track record of delivering large-scale PV projects, not aquarantee of the best efficiency, lowest degradation, or longest warranty.
What type of solar panels are the best?
There isn’t a single best solar panel; it really depends on your detailed solar project goal, site, andbudget.
- For space-limited rooftops of residential houses, high-efficiency monocrystalline panels suchas N-Type TOPcon and HjT are the best choice.
- For large ground mount or utility projects, mono PV panels, especially bifacial modules, arebetter for higher yield.
- For Corrosive sites, reliability is important, so dual glass PV panels with robust certificationsare best.
