• Factory Direct Sale: A-Grade High Efficiency 250W Poly Solar Panels System 1
  • Factory Direct Sale: A-Grade High Efficiency 250W Poly Solar Panels System 2
  • Factory Direct Sale: A-Grade High Efficiency 250W Poly Solar Panels System 3
Factory Direct Sale: A-Grade High Efficiency 250W Poly Solar Panels

Factory Direct Sale: A-Grade High Efficiency 250W Poly Solar Panels

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5000 watt
Supply Capability:
40000000 watt/month

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Our solar cells are widely used in solar pump, solar lighting, lamps, household electricity, traffic, communication, meteorological, building and photovoltaic power plants and so on.



Max Power Voltage Vmp(V):               30.4

Max Power Current Imp(A):                 8.26

Open Circuit Voltage(V) :                       37.5

Voc(V)Short Circuit (A):                         8.88

Current Isc(A)Max Power Pm(W):      250


Temperature Coefficient of Cells


Temperature Coefficients of Isc(%/℃)0.04
Temperature Coefficients of Voc(%/℃)-0.34
Temperature Coefficients of Pmp(%/C)-0.42


Mechanical Data

No. of Cells and Connections60(6x10)
CellPolycrystalline Cell
Packing812 Pcs/40ft(H) Container



Opening Temperature-40℃ to +85℃
Storage Temperature-40℃ to +85℃
Max System Voltage1000VDC(IEC)/ 600VDC(UL)



Products Guarantee12yrs free from defects in materials and workmanship
Performance GuaranteeNo less than 90% within 10yrs and no less than 80% within 25yrs
CertificatesTUV(IEC61215&IEC61730), CE


IV Curve


Q:I was hearing that we need silver as a medal for the creation of solar panels, is this true? How much silver would be needed to make one solar panel? (if this is true)
Some research has shown that small amounts of silver can improve the efficiency of solar panels. But this appears to be in the research stage and applies to the the thin film solar cells. Some solar panels makes use silver as the wiring in kind of a screen printing process, but you don't need to use silver, you can use copper or aluminum using different techniques instead. Generally the metal used is in small amounts and not a majority of the cost of the solar panel.
Q:Can solar panels be installed on golf courses or recreational facilities?
Yes, solar panels can be installed on golf courses or recreational facilities. The large open spaces and ample sunlight available at these locations make them suitable for harnessing solar energy. Additionally, solar panels can help these facilities reduce their carbon footprint and lower their energy costs.
Q:Can solar panels be used for powering an airport or transportation hub?
Yes, solar panels can be used to power an airport or transportation hub. Solar energy can be harnessed through photovoltaic cells in solar panels, which convert sunlight into electricity. By installing a sufficient number of solar panels on rooftops, parking lots, or open spaces in these facilities, it is possible to generate enough clean and renewable energy to meet a significant portion of their power needs. This not only helps reduce carbon emissions and dependence on fossil fuels but also lowers operating costs in the long run. Many airports and transportation hubs worldwide have already adopted solar power as a sustainable energy solution.
Q:Can solar panels be used in areas with high wind speeds?
Yes, solar panels can be used in areas with high wind speeds. However, it is important to ensure that the solar panel installation is designed and engineered to withstand the specific wind conditions in the area. This may involve using specialized mounting systems and ensuring proper anchoring and structural reinforcement to prevent damage or dislodgement due to strong winds.
Q:. The 2v battery will only be turning a small 2v motor that will be turning very slowly yet possibly or a long time. 2. -2 hours max per day it will be running3. I want it to be fully sufficient on solar power once the energy in the battery runs out. What specifications for my panel do you think I will need. However, i have limited space so the smaller the better as long as it can do the jobP.S: I don't know much about electricity and solar power so simple answers please :)
Are you concerned about your higher energy bills? What about the atmosphere, are you worried about its resources that are nonrenewable? Solar energy and how to make solar panel are the solutions for you. Let us talk about the charges of pv strength and how practical it is for YOUR budget. The first thing you should know is that the size of your house has nothing to do with the cost on how to make solar panel. So for those people fortunate sufficient to are living in a gigantic property, pv panels are not here to overwhelm you with charges. What you do need to consider into consideration are items like how much sun you get a day, in which you stay, and how very much power you use a day. After you can appear to individuals conclusions, we can commence the math. Permit us do an instance together to figure out a ballpark expense for pv panels. Take a peak at your power bill as it is now and locate how numerous KWH you used, We will say that variety you found was 800 KWH. Now we are going to divide 800 by 30 and we get a whopping 26. 7. Don’t forget that quantity. It is how very much estimated KWH you use a evening. If you locate that you are exposed to six hours of sunlight a morning you would then consider the 26. 7 and divide it by 6. You reply should be four. 45 (or 4,450 watts). If you multiply that reply times . 5 you have successfully observed out how a lot of photo voltaic panel watts you need. The installation costs then are associated to the quantity you found above. Each and every watt usually costs $7-$9. All your installation fees need to be integrated with that estimated ending price. Now that you know how very much your method will charge, you will be relieved to know that it actually pays for itself inside six many years. There are also tax exemptions for people that select to use pv vitality. It is an investment that is really worth anyone’s time and funds Hope It's Help.
Q:How much would it cost to make an average size house be able to depend on solar panels for all of its power?How many solar panels would you need and wear would you put them? Would the roof be large enough to support the panels needed?Do solar panels work well in higher latitudes like northern USA or southern Canada? Can you power your house for the whole year if you live in these environments? What kind of maintenance do solar panels require?
I can begin to point you in the right direction. It is a very complicated thing you are asking about. Solar panels produce direct current, in order to store that power for use at night, and on cloudy days, you need a lot of batteries. Those batteries store direct current. In order to use that direct current to power your refrigerator, you need to put it through a thing called an inverter. The inverter produces AC from DC. You may have seen one for sale to plug into the lighter in a car so you can use things that require AC in your car. The inverter looses power doing the conversion. Over time, you can purchase direct current appliances, and make the system more efficient. Years ago, a decision was made to go with AC because of transmission issues (you can move AC across a wire a long distance, and DC is more difficult to move). Many appliances convert AC to DC internally to do their work, but such appliances are expensive. Have I answered your question? Not really. You should understand your question better though.
Q:Can solar panels be used for powering a telecommunications tower?
Yes, solar panels can be used for powering a telecommunications tower. Solar panels convert sunlight into electricity, which can then be used to power various devices, including telecommunications equipment. This renewable energy option is sustainable and environmentally friendly, making it an increasingly popular choice for powering remote or off-grid telecom towers.
Q:Can solar panels be installed on desalination plants?
Yes, solar panels can be installed on desalination plants. Solar energy can be harnessed to power the desalination process, reducing the reliance on traditional energy sources and making the plants more sustainable and environmentally friendly.
Q:I want to plug my solar system battery bank into my transfer switch on my cabin when not using a generator. The transfer switch will handle 220 volt from my generator. How do I get a 220 volt inverter that runs 60 hz or do all of them run 50 hz.I see plenty of 20 volt 60 hz. I'm at the point of needing to order one and I'm not sure.
definite, the inverter ought to pull potential from both the battery and photo voltaic array, yet so what? that would favor to not be a project. both the potential from the photo voltaic array receives kept contained in the battery, or it is going on to the inverter, what vast difference does it make? in reality that's more beneficial effective to pass on to the inverter, as battery value/discharge cycles waste quite some potential. yet you desire a fee controller between the panel and the battery and which will regulate the present into the battery to maintain away from overcharging, and also regulate the voltage and contemporary to right value the battery. without it, the output from the array will be too intense for the battery, or too low. .
Q:How does Solar Panel make Electricity ?
when sunlight hits a solar panel the photons from the light hit a layer in panel that converts it into electrons through conduction, thus making electricity

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