Prostar 500w solar panel 320w multicrystalline photovoltaic for renewable energy systems


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Product Detail

Quick Details

  • Place of Origin:
    Guangdong, China (Mainland)
  • Brand Name:
  • Model Number:
  • Material:
    Polycrystalline Silicon
  • Size:
  • Number of Cells:
  • Max. Power:
  • Solar Cell Type:
    Polycrystalline 156×156 mm
  • Junction Box:
    IP67 Rated
  • Frame:
    Anodized Aluminium Alloy
  • Front Glass:
    3.2mm, High Transmission, Low Iron,Tempered Glass
  • Connector:
    MC4 Compatible Connector
  • Cables:
    4mm2 , Length:900 mm
  • Operating Temperature:
    -40℃ to +85℃
  • OEM/ODM:
  • Warranty:
    25 Years Output Power Guarantee
  • Certificate:

Packaging & Delivery

Packaging Details: 5PCS and 10PCS Solar Panels are packed by one plywood wooden box, Standard package is 24PCS/25PCS/30PCS Solar Panels are packed by one plywood pallet.
Delivery Detail: 5-7 working days once received deposit.

Prostar 500w solar panel 320w multicrystalline photovoltaic is the first step to converting your house to solar. Prostar high-performing multicrystalline solar panels achieve an excellent module-level efficiency of up to 16.66%. Whether you want to connect this to the electrical grid, or power your off-grid cabin, used widely across solar projects for homes, businesses, and large-scale power plants, these reliable, high-efficiency solar panels minimize installation costs and maximize kWh output. Prostar Solar’s multicrystalline modules deliver above-average energy yields.


Product Description



Model PPS320W
Product Warranty 10 years limited product warranty
Power Warranty 15 years at 90% of the minimal rated power output
25 years at 80% of the minimal rated power output 
Electrical Data
Maximum Power (Pmax) 320Wp 235Wp
 Maximum Power Voltage (Vmpp) 36.0V 33.3V
Maximum Power Current (Impp) 8.89A 7.06A
Open Circuit Voltage (Voc) 45.0V 42.4V
Short Circuit Current (Isc) 9.60A 7.79A
Power Tolerance(Positive) 5%
Module Efficiency STC 16.66%
Operating Temperature Range -40°C to +85°C
Maximum System Voltage 1000VDC (IEC)
Series Fuse Rating 15A
Temperature Coefficient of Pmax -0.44 %/°C
Temperature Coefficient of Voc -0.33 %/°C
Temperature Coefficient of Isc 0.055 %/°C
Nominal Operating Cell Temperature(NOCT) 45±2°C
Mechanical Characteristics
Cell Type Polycrystalline  156×156 mm
Cell Number 72(6×12)
Dimensions (mm)  990x1940x45
Weight(Kgs) 22.00
Front Glass 3.2 mm, High Transmission, Low Iron,Tempered Glass
Frame Type Anodized Aluminium Alloy
Junction Box Protection Class IP 67 Rated
Connector Type MC4
Output Cables 4 mm², Length:900 mm
Standard Test Conditions (STC): Irradiance 1000W/m2, AM 1.5, Cell temperature 25°C
Nominal Operating Cell Temperature (NOCT): Irradiance  800W/m2, AM 1.5, Wind Speed 1m/s, Ambient temperature 20°C


Product Quality


Solar panel micro cracks, or more precisely micro cracks in solar cells pose a frequent and complicated challenge for manufacturers of photovoltaic (PV) modules.

There are different quality testing methods to identify micro cracks of which electroluminescence (EL) or electroluminescence crack detection (ELCD) testing is one of the most applied method.
EL testing can detect hidden defects that were before untraceable by other testing methods, such as infrared (IR) imaging with thermal cameras, V-A characteristic and flash testing.
It is an image analysis and measurement process allowing to peer directly into the cells of a pv module and locate potential inherent defects.

Optimally, EL testing is performed once before lamination so that the defect solar cells can be replaced and then again after (careful) lamination.

Visually, micro-cracks may appear in form of so called snail trails on the cell structure. However, snail trails – as a long-term impact sign – can also be the result of chemical process causing the surface of the cell to change and/ or hot spots.
Therefore, visual checking of PV modules alone is not an effective method to identify micro-cracks and should not replace a thorough EL test.



Packaging & Shipping



Normally packing: 1pc/2pcs/4pcs/5pcs/10pcs/20pcs per carton
Individual packing requirement is acceptable.


Packing Information 320W Solar Panel
Container 20′ GP 40′ GP
Pallets per Container 10 24
Pieces per Container 240 576 

Material in stock can be produced (procedure 7-20days) right away after pre-payment confirmation. COSCO/Mearsk/MSC/HPL ship to worldwide for safe shipping, don’t worry about package damage or loss. It takes about 15-40 days to worldwide, Please note us your contact details include your phone number for easy contacting from shipping company officer.


By Sea Delivery from Foshan or Guangzhou seaport
By Air Departure from Guangzhou Internation Airport
By Express Post by DHL, EMS, UPS, TNT, FedEx. 





Payment Terms

T/T 30% T/T in advance, paid the balance before shipment
L/C L/C amount above 1,000,000 usd, we can accept L/C at sight
West Union


Amount lower than 5000usd

Delivery time 5-7 working days after receiving payment for one container  
Company Information



Q: Is Prostar Solar factory or trade company?

A: Prostar Solar is a factory located in Foshan city, nearby Guangzhou Baiyun International Airport.


Q:What is solar energy?

A: Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis.Solar energy technologies use the sun’s energy and light to provide heat, light, hot water, electricity, and even cooling, for homes, businesses, and industry.


Q:How do solar panels work?

A: A solar panel turns the sun’s light into electricity! One solar panel is made up of many small solar cells. Each of these cells uses light to make electrons move. The cell is made up of two different layers that are stuck together. The first layer is loaded with electrons, so the electrons are ready to jump from this layer to the second layer. That second layer has had some electrons taken away, so it is ready to take in more electrons.

When the light hits an electron in the first layer, the electron jumps to the second layer. That electron makes another electron move, which makes another electron move, and so on. It was the sunlight that started the flow of electrons, or electricity.


Q:What are the components of a photovoltaic (PV) system?

A: A PV system is made up of different components. These include PV modules (groups of PV cells), which are commonly called PV panels; one or more batteries; a charge regulator or controller for a stand-alone system; an inverter for a utility-grid-connected system and when alternating current (ac) rather than direct current (dc) is required; wiring; and mounting hardware or a framework.


Q: what size solar system do i need?

A: It depends on how much electricity you use. Two homes the exact same size will use different amounts of electricity and therefore require different size systems. Major electrical loads within a home are air conditioners, electric heaters, pools, and other heating elements or motors.

That being said, an average 2,500 sq. ft. single-family home uses about 5,000 kilowatt-hours of electricity per year. A 3 kilowatt (AC) system will generate nearly all the electricity required for such a home on an annual basis. Sometimes a PV system can be installed that is slightly over-sized to allow for the possibility of a growing family or other factors that may play a part. When a system overproduces electricity, the unused portion is fed back into the grid and will actually be credited back to your utility account in a program called net-metering.

Contact US
Company Name: Foshan Prostar Science & Technology Development Co., Ltd.  

Contact Person:  Orson Zhong
Mobile/WhatsApp:  +86(0)13827733783
Email:  orson(@)
Tel:  +86(0)757 81285488
Skype:  orsonz.prostar
Website: Scan Wechat to talk to Orson directly!



Contact us today to determine if you can take advantage of state solar energy incentives!

(Welcome your inquiry, trial order also is welcome)

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