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Polycrystalline silicon photovoltaic 340 watt 156*156mm*72 pcs cells solar panels
Polycrystalline Solar Panel
Features:
The production process of polycrystalline silicon solar cells is similar to that of monocrystalline silicon solar cells, but the photoelectric conversion efficiency of polycrystalline silicon solar cells has to be reduced a lot, and its photoelectric conversion efficiency is about 17%. In terms of production cost, it is more expensive than monocrystalline silicon solar cells. The material is easy to manufacture, saves power consumption, and the total production cost is lower, so it has been developed in a large amount. In addition, the service life of polycrystalline silicon solar cells is shorter than that of monocrystalline silicon solar cells.
Maximum Power at STC [Pmax] | 340W |
Open Circuit Voltage [Voc] | 45.9V |
Short Circuit Current [Isc] | 9.62A |
Voltage at Maximum Power Point [Vm] | 37.6V |
Current at Maximum Power Point [Im] | 9.05A |
Power Tolerance | 0~+5W |
Module Efficiency | 17.58% |
Maximum Power at NOCT [Pmax] | 247.4 |
Open Circuit Voltage [Voc] | 42.9 |
Short Circuit Current [Isc] | 7.6 |
Voltage at Maximum Power Point [Vm] | 34.6 |
Current at Maximum Power Point [Im] | 7.1 |
Values at Standard Test Conditions STC | Air Mass AM1.5,irradiance 1000W/㎡ ,Cell Temperature 25℃ |
NOCT | Irradiance at 8000W/㎡,Ambient Temperature 20℃,Wind Speed 1m/s |
Product details:
Polycrystalline silicon material is a collection of many single crystal particles (particle diameter ranging from a few microns to a few millimeters). The size and crystal orientation of each single crystal particle are different from each other, and the conversion efficiency is about 13% to 15%, up to 20%. Polycrystalline silicon solar cells have a shorter production time and lower manufacturing costs than monocrystalline silicon solar cells, and have an important position in the market.
FAQ
1.Q:Do you have your own factory?
A:Yes, we are professional manufacturer mainly in solar panel for many years. Our factory is located in Hefei, Anhui, China.
2.Q:What kind of certification you have?
A:ISO9001,ISO14001,ISO18001, TUV,CQC,CE,CEC,UL and so on.
Our products could pass different labor testing according to different countries' requirements.
3.Q:Where we can use the system?
A:You can use the system for home, for power station, for lighting system and so on, wnere the grid power is expensive.
4.Q:How about your warranty?
A: We provide 1.5 and 3 years warranty for different products and whole life technical support.
5.Q:Competitive Price
A:All of our products are produced by our own factory. So the price is very copetitive.
6.Q:How to do the installation?
A: This portable solar system installation is very simple, only need to connect solar panel with controller, and push ON/OFF button, then it will start to work.
7.Q:24-hours online service
A: Please feel free to contact us. Our sales team will provide you with 24 hours better pre-sale.