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Longi Hi MO-7 620W Bifacial Double Glass Solar Panel

The Longi 620W Bifacial Double Glass Solar Panel is a high-performance photovoltaic module designed for utility-scale, commercial, and industrial solar installations. Combining advanced N-type TOPCon technology with a bifacial design, it delivers exceptional energy efficiency and durability, making it ideal for projects requiring high power density and long-term reliability.

  • Brand Name :

    Longi
  • Power Range :

    585-620M
  • Dimensions of Module :

    2382x1134x30 mm
  • Weight :

    33.5 kg
  • Glass :

    2 mm
  • Frame :

    Anodized Aluminium
  • Junction Box :

    IP68, three diodes
  • Cable :

    4mm², 400mm in length, length can be customized
  • Max. Efficiency :

    21.9%
  • Wind/Snow Load :

    5400Pa/2400Pa
  • Number of Cells :

    144 Cells
  • Packing :

    QC 4.10-351/ MC4-EV02A
Longi solar panel

High Efficiency & Power Output

With a panel efficiency of 23% and a maximum power output of 620W, this module optimizes energy generation even in limited space459.

Utilizes N-type TOPCon cells and bifacial technology, enabling power generation from both sides and increasing energy yield by up to 30% in reflective environments (e.g., snow, sand, or light-colored surfaces)211.

 

Robust Dual-Glass Construction

Features 2.0+2.0mm tempered double glass for enhanced durability, weather resistance, and a lifespan exceeding 30 years45.

The frameless or anodized aluminum alloy frame design ensures resistance to corrosion, PID (Potential Induced Degradation), and low LID (Light-Induced Degradation)511.

 

Advanced Technology Integration

Incorporates half-cut cell design and multi-busbar (MBB) technology to minimize energy loss and improve shading tolerance49.

Operates efficiently across a wide temperature range (-40°C to 85°C) and performs well under low-light conditions5.

 

Certifications & Warranty

Certified to international standards (TÜV, CE, ISO, IEC) and equipped with an IP68-rated junction box for waterproof and dustproof reliability911.

Backed by a 30-year linear power warranty, ensuring long-term performance stability45.

 

Versatile Applications

Suitable for large-scale solar farms, commercial rooftops, and industrial projects. Its 144-cell configuration and compatibility with DC1500V systems support seamless integration into high-voltage setups.

 

Product Parameter(STC)

 

Module Type LR7-72HGD-595M LR7-72HGD-600M LR7-72HGD-605M LR7-72HGD-610M LR7-72HGD-620M
Maximum Power (Pmax/W) 595 600 605 610 620
Open Circuit Voltage (Voc/V) 49.53V 49.63V 49.73V 49.84V 50.05
Short Circuit Current (lsc/A) 11.58 11.64 11.70 11.76 11.90
Voltage at Maximum Power (Vmp/V) 41.83 41.93 42.03 42.14 42.34
Current at Maximum Power (Imp/A) 13.52 13.6 13.68 13.76 1392
Module Efficiency(%) 22.0 22.2 22.4 22.6 23.0
Operational Temperature  -40°C ~ +85°C
Power Output Tolerance 0~3% 
Temperature Coefficient of lsc +0.045%/°C
Temperature Coefficient of Voc -0.230%/°C
Temperature Coefficient of Pmax  -0.280%/°C

 

 

AUTHORIZATION

LONGi Solar is highly committed to retaining its 'leadership in mono’and being a loyal partner in its distribution network.

We have obtained their official authorization and established a long-term, stable, and sustainable cooperative relationship.

 

Longi授权书2024

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