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Just Solar Co., Limited
From €0.177 / Wp
Type: Monocrystalline
Power Range: 400 ~ 430 Wp
Region: China China
Note: Your Enquiry will be sent directly to Just Solar Co., Limited.


Assembled with high-efficiency PERC cells, the half-cell configuration of the modules allows for higher power output, better temperature-dependent performance, reduced shading effect on energy generation, lower risk of hot spot, as well as enhanced tolerance to mechanical loading.

Product Characteristics

Model No.
Product Warranty 10 Years
Power Warranty 10 Years of 90% Output Power, 25 Years of 80% Output Power
Electrical Data at STC  
Maximum Power (Pmax)
400 Wp 405 Wp 410 Wp 415 Wp 420 Wp 425 Wp 430 Wp
Voltage at Maximum Power (Vmpp)
40.45 V 40.55 V 40.65 V 40.7 V 40.8 V 40.9 V 40.96 V
Current at Maximum Power (Impp)
9.9 A 10 A 10.1 A 10.2 A 10.3 A 10.4 A 10.5 A
Open Circuit Voltage (Voc)
48.6 V 48.75 V 48.9 V 49 V 48.1 V 49.2 V 49.3 V
Short Circuit Current (Isc)
10.5 A 10.6 A 10.7 A 10.8 A 10.9 A 11 A 11.1 A
Panel Efficiency
19.9 % 20.2 % 20.4 % 20.7 % 20.9 % 21.2 % 21.4 %
Power Tolerance (Positive)
+ 5 % + 5 % + 5 % + 5 % + 5 % + 5 % + 5 %
  Standard Test Conditions (STC): air mass AM 1.5, irradiance 1000W/m2, cell temperature 25°C
Thermal Ratings  
Operating Temperature Range -40~85 °C
Temperature Coefficient of Pmax -0.37 %/°C
Temperature Coefficient of Voc -0.28 %/°C
Temperature Coefficient of Isc 0.04 %/°C
Maximum Ratings  
Maximum System Voltage 1500 V
Series Fuse Rating 15 A
Material Data  
Panel Dimension (H/W/D) 2015x996x40 mm
Weight 23 kg
Cell Type Monocrystalline
Cell Size 158.75×158.75 mm
Cell Number 144
Glass Type Tempered, High Transmittance
Download Manufacturer's PDF

Just Solar Co., Limited

+86 21 3988 0300
1288 Kanghe Road, Jiaxing City, Zhejiang Province, P.R. China
No. Staff: 5,000
Parent Company: SHI Group Limited
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Production (MW)/: 1000 MWp
Monocrystalline, Polycrystalline
Power Range(Wp): 1-500

Useful Contacts

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Frank Yang CEO
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Rachel Liu Sales manager
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Reiling Market manager
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Monica Li Sales Manager
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Mark Zhou Marketing Director
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Sec Sales Manager
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Frank Sales Manager
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Chen Shengjiao Sales Manager
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JUST SOLAR International Sales
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Sally Sales Manager
Company Description
JUST SOLAR CO. LIMITED is a multinational company that manufactures, designs, R&D, realizes quality control and sales PV cells, modules and system for worldwide customers and commercial projects.

Here at JUSTSOLAR, we are a one-stop solution provider for our customers’ sustainable power needs. We harness the power of the sun and are committed to providing our customers the best solar products and solutions for long term and sustainable commercial, industrial, rural and domestic energy needs.

Total reliability, high quality and standards, timely delivery and expert project management ensure our reputation staying with us through the years.

JUSTSOLAR firmly believes that long-term customer satisfaction is the determining factor of our success. To continue meeting the changing needs of our valued customers, JUST-SOLAR is committed to creating value that increases and enhances customer’s competitiveness in its industry as well as providing a high standard for superior quality products and value-added service.

High-quality and innovative photovoltaic solar modules

We are the experts when it comes to solar modules. With our yearly production of 1 GW, we can fulfill all your wishes. All you need to do is tell us whether poly- or monocrystalline and we deliver. We only remain stubborn when it comes to quality. Whatever leaves our production halls has been proved and always complies with the highest international required standards. These are only changed if it’s for the good of quality. Then and only then can we guarantee you long durability. 



Shading Resistant Smart Modules with Hot-Spot free technology 

 Power Range: 5W-500W
 Available in mono and polycrystalline

    -    Supreme design and quality;

    -    Individual bypass diode for each cell. With Hot-Spot Free technology  protects each cell by an individual bypass diode;W

    -    When the current of a single cell does not match the current of the whole string, that cell has a reverse voltage, so when measured more than 0.6V, it will automatically activate the bypass diode. As a result, the rest of the cells will not be affected by the disruption;

   -      Increased performance ratio up to 30% ;

   -     We provide all International standards' certificates, 30 years performance guarantee and 12 years product warranty;

With a large selection of module dimensions and performance classes you will find exactly the right one for your project






20 More Series From Just Solar Co., Limited

  • €0.189 / Wp
    430~455 Wp Monocrystalline
  • €0.166 / Wp
    JUST Half-Cut...
    325~350 Wp Monocrystalline
  • JST420-440TF
    420~440 Wp Thin film
  • €0.186 / Wp
    JUST Half-Cut...
    380~410 Wp Monocrystalline
  • JST360-400TF
    360~400 Wp Thin film
  • €0.168 / Wp
    355~375 Wp Bifacial, PERC
  • €0.175 / Wp
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    350~370 Wp Polycrystalline
  • JST340-360TF
    340~360 Wp Thin film
  • €0.172 / Wp
    330~540 Wp Monocrystalline
  • €0.189 / Wp
    JST 5-200P
    5~200 Wp Polycrystalline
  • €0.344 / Wp
    JST 10-200M
    10~200 Wp Monocrystalline
  • €0.181 / Wp
    300~320 Wp Bifacial, PERC
  • €0.213 / Wp
    JUST Half-Cut...
    280~305 Wp Polycrystalline
  • €0.150 / Wp
    260~295 Wp Polycrystalline
  • €0.168 / Wp
    260~330 Wp PERC
  • JST200-260TF
    200~260 Wp Thin film
  • JST120-140TF
    120~140 Wp Thin film
  • €86.0 / Wp
    100 Wp Thin film
  • JST70-80TF
    70~80 Wp Thin film
  • €0.688 / Wp
    315~345 Wp Polycrystalline