Xiamen D.T. Multi Tech Co., Ltd. is one of the most reliable manufacturers and suppliers of double glass solar module in China. With abundant experience, we warmly welcome you to wholesale cheap double glass solar module from our factory. If you have any enquiry about cooperation, please feel free to email us.
Commercial & Utility Solar Projects
In today's rapidly evolving solar market, choosing the right module is no longer just about upfront cost-it's about long-term performance, system reliability, and return on investment. This double glass solar module 620W is built with advanced n-type bifacial solar panel technology, offering higher efficiency, lower degradation, and superior durability for demanding environments. Designed for EPC contractors, solar installers, and distributors, it delivers consistent energy output and long-term value across large-scale and commercial solar applications.
Higher Energy Yield with Bifacial Technology
This 620W bifacial PV module is meticulously engineered to generate electricity simultaneously from both its front and rear surfaces, thereby significantly boosting total power generation compared to traditional modules. Under ideal installation conditions-such as settings featuring highly reflective surfaces like sand, concrete, or white rooftops-the power generation gains from the module's rear side will substantially enhance the overall output of the entire system.
For project developers and EPC contractors, this translates to:
- Higher energy yield (kWh) per installed watt
- An improved Project Internal Rate of Return (IRR)
- Superior performance in ground-mounted PV power plant projects
MECHANICAL PARAMETERS
| Cell | Mono |
| Weight | 33.1kg |
| Dimensions | 2382±2mm×1134±2mm×30±1mm |
| Cable Cross Section Size | 4mm²(IEC), 12 AWG(UL) |
| No. of cells | 132(6×22) |
| Junction Box | IP68, 3diodes |
| Connector | QC 4.10-351/ MC4-EVO2A |
| Cable Length (Including Connector) | Portrait: 400mm(+) /200mm(-) Landscape: 1400mm(+) /1400mm(-) |
| Front Glass/Back Glass | 2.0mm/2.0mm |
| Packaging Configuration | 36pcs/Pallet, 720pcs/40HQ Container |
Double Glass Structure for Enhanced Durability
Built with a robust dual-glass design, this double glass solar module provides excellent resistance to environmental stress, including humidity, dust, and chemical corrosion. Compared to conventional backsheet modules, the glass-glass structure significantly improves mechanical strength and longevity.
This makes it especially suitable for:
- Coastal and high-humidity environments
- Desert and high-UV regions
- Industrial and agricultural solar projects
FAQ
Q: What are the main advantages of a double glass solar module 620W compared to a standard module?
A: A double glass solar module offers significantly better durability and longer service life compared to traditional backsheet modules. Combined with n-type bifacial technology, it also delivers higher energy yield and lower long-term degradation, making it ideal for utility-scale and commercial projects.
Q: What is the expected degradation rate of this n-type module?
A: N-type modules typically have **lower degradation rates** than P-type modules. The first-year degradation is minimal, and annual degradation is significantly reduced, ensuring higher energy retention over a 25–30 year lifecycle.
Q: Is this module compatible with mainstream inverters and mounting systems?
A: Yes. The module is designed with industry-standard electrical parameters and connectors (**MC4-compatible**), ensuring compatibility with most mainstream inverters and mounting systems, including tracking systems like Nextracker.
Q: How much additional electricity can bifacial modules generate?
A: Bifacial modules can generate an additional 5% to 20% of electricity, depending on installation conditions such as ground reflectivity (albedo), mounting height, and system design. The power generation gain from the rear side of the modules is particularly significant in highly reflective environments, such as sandy terrain, concrete, or white rooftops.
Q: What is the lead time for orders?
A: Lead time typically ranges from 2 to 4 weeks, depending on order quantity and production schedule. For large utility-scale projects, delivery timelines can be planned in advance to ensure smooth project execution.
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