250W Poly Solar Panels Made In China and Low Price

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1.Widely using of the most popular and mature type of modulesfor on-grid system.

2.Specifications subject to technology and test conditions,GSUN Solar reserves the right of final interpretation.

3.Leading manufacturing technology in PV industry, strictly controlling the quality of raw materials and the process of producing.

4.100% EL inspection, ensures modules are defects free.

5.Cells binned by current to improve module performance.

6.Anti reflective glass. Not only to increase the light absorption, but also to make the module has the function of self-cleaning in water environment, effectively reducing the power loss caused by dust.

7.Outstanding performance in low-light irradiance environments.

8.Excellent mechanical load resistance: Certified to withstand high wind loads(2400pa) and snow loads(5400pa).

9.High salt and ammonia resistance.

10.Positive power tolerance:0-+5w.




Temperature Coefficient




Temperature Coefficients of Isc (%/℃)


Temperature Coefficients of Voc (%/℃)


Temperature Coefficients of Pmp (%/℃)



Performance Parameters



Max Power Voltage Vmp(V)   






Max Power Current Imp(A)






Open Circuit Voltage Voc(V)






Short Circuit Current Isc(A)








Mechanical Data



1655 x 992 x 40 mm



No. of Cells and Connections

60 (6 x 10)




Monocrystalline Cell 156 x 156 mm


624 Pcs/40ft(H) Container




5 years product warranty

10-years 90% of Min. rated output power,and 25-years 80% of Min. rated output power warranty


Comprehensive Certificates:

CE Certificate

ISO 9001:2008:Quality management systems


TUV and UL

IDCOL for Bangladesh



- High efficiency, multicrystalline silicon solar cells with high transmission

and textured glass deliver a module effi ciency of up to 16.0%,

minimizing installation costs and maximizing the kWh output of your

system per unit area.

- Tight positive power tolerance of 0W to +5W ensures you receive

modules at or above nameplate power and contributes to minimizing

module mismatch losses leading to improved system yield.

- Top ranking in the “TÜV Rheinland Energy Yield Test” 



1.CNBM is a state-owned company under jurisdiction of central goverment , one of  Fortune 500 .Just because of this ,we can get more support and resources from our government.So ,it is realiable .

2.CNBM's solar  products are high-qualified with TUV,UL,VDE,CE,ISO certificates. Our products ranges top in China.

3.Just as I mentioned in attahment ,we signed 500MW project with Urkan under the witness of our chairman Xi Jinping ,CNBM has ability to meet your large quantity needs,Our annual capacity is 1GW.

4.We can offer you a competitive price .Because you are our potential and valued customer .

5.We ,CNBM ,has our own factory :CNBM JETION SOLAR .We can also customize according to customers' need . You can google our factory .



FAQ:Why install a Solar PV system?

There are many reasons to install a Solar PV system now:

As a low risk investment the returns of between 8-10% net are hard to beat especially during this financial downturn where bank interest rates are below inflation (i.e. money in a savings account even with interest added is actually reducing in value).

Its good for the environment. Installing a small domestic system of around 1.5 kW would provide around 1125 kWh of electricity every year, this would save around half a tonne of CO2 annually.

Electricity can be supplied at the point of use. Reducing strain on our national grid network.

The system will run silently and so will cause minimal disruption.

There is very little maintenance required for a PV system.

After the initial installation costs, there are no further fuel costs.

PV systems are modular, and can be added to at any time.

FAQ:How long will a Solar PV system last?

The MCS accreditation scheme means that all panels installed under the scheme by approved agents will continue to generate for at least 25 years. Over this time their output will diminish slightly but they should still perform at 85% at the 25 year mark according to the scheme rules. Manufacturers have invested heavily to ensure their products meet and in most cases exceed these target


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Q:How much do solar panels generally cost and are they efficient for my home?
At the present time, even with the government paying some, they are not cost effective. If you live in middle of nowhere and you want to be prepared in case all Hell breaks loose, and you can install your own, then I might consider them as a backup plan only if I did not have a running stream with 0 feet of drop. You can make a water generator really cheap if you have that creek. Call a solar panel company and get a quote. Do the math and see how long it takes for pay back. They are also allergic to hailstorms. My son did and it was something like 40 years to break even.
Q:How many solar panels do you need to power a house?
Solar power is expensive power. The costs have been coming down but unless it's the only option or there are government subsidies, it would still be less expensive to buy electricity from the grid. The way you compare the upfront costs of solar power with monthly bills is by the Internal Rate of Return equation or the Net Present Value calculation. Vendors will use the payback periods to try and convince you into a financial decision where they reap all the benefits so you need to learn how to do a proper financial analysis. The average US household uses about 950 kwh per month, unless you are very wealthy, you will not be able to afford enough panels for that and you probably don't have enough roof space. You will have to reduce your power usage as much as possible. Batteries are expensive and inefficient. Lead acid batteries are 95% efficient at discharging but only 50% efficient at charging. A battery based system would not only include the costs of the batteries but would also double the number of panels required. Lead acid batteries have their lives rated at only 20% draws on their capacities, they lose a lot of life with each deep cycle. There are deep cycle batteries which have thicker plates but they are also rated at 20% draw and a deep cycle battery's life would drop to 94% with just one deep cycle draw. This means, it's customary to buy five times your diurnal capacity worth of batteries, fortunately this allows for several cloudy days. If you do want to have deep discharges, buy Nickel Iron batteries. You will want a grid tied system instead where you sell the power you produced to the utility and buy back what you need effectively turning the grid into a 00% efficient battery. Of course, there are costs involved as the utilities would likely charge a monthly fee just to be hooked up so this cost must be taken into account. There is also the risk that the utilities may change their net-metering arrangements on you later.
Q:How may solar panels/wind turbines may be made affordable?
Answered okorder.com/. They were initally so lame (and this is related to their general paranoia) that they cut deals to place the turbines before they secured corridor access to substations. Load gun, cock it, aim at foot, shoot.
Q:can i use 00 ohm /4 watt resister for 5v coming direct from solar panel?
Just connect the 5 volts out of the panel directly to the iphone via an USB connector. BUT, is the panel output always 5 volts, ±0.25 volts? Because that is the USB specification, and anything outside of those values could damage your iphone. And solar panels are known for their wide swings in voltage. Bottom line, resistor not needed, and you need to be positive you supply the correct voltage to the iphone. Best way to do that is to start with a solar panel that puts out at least 7 volts and use a LM7805 regulator. The only resistors needed are those to tie the data lines into a certain combination of resistance and voltage so that the iphone is fooled into thinking that a proper USB is connected. That would NOT involve a 00 ohm resistor. Search online for the proper values and connections. edit: are you repeating your same inane question with a different account? That is totally against the rules and could get you suspended.
Q:I want to buy solar panels?
You will not recoup your cost in utilities savings. you will get it back in state and federal tax credits and accelerated depreciation on the system. You also have to be aware that a KV system for example is different in different climates. I just priced a system that is in Malibu,CA and it is very efficient due to sun exposure. the same system in Idaho will not create the same amount of power output. Therefore will not save the same amount on utilities. I have included a plug and play system that just came on the market. But there are other systems available.
Q:How to charge a solar panel?
Haven't you watched the Truman Show? Just cue the sun...
Q:Do solar panels go bad if not used?
Batteries can only be recharged so many times and as for panels going bad, only the weather will help break the metal down by rusting it away.
Q:What can a watt solar panel power?
You can run a lot of things. If you set the system to charge batteries when you are not using anything, they will charge effectively. You can use the system for lighting, LED lighting direct from the battery power is most effient since LEDs are low voltage devices with a very long life span. I replaced a 2 tube flourescent trough with four 5Watt PowerLEDs for example, While I have it on 20VAC at the moment, I can move it to 2 VDC power with ease, and had set it up to run initially on 2 volt sources. There are also many 2 volt appliances as well. You can even convert some of those all in one stereo systems to operate on 2 volts by eliminating the power supply. You will actually use less power by doing so. You will not be able to blow the shingles off the roof unless you add a Class D amplifier to the output, but for most listening, the output is adequate. Some small TV's these days can be run from 2 volt sources, if not directly, then with a buckboost inverter for a laptop. The small TVs only draw about 30 to 45 Watts. Skip the idea of using an inverter, they are not efficient at small loads, and represent additional load on the system. So with a little bit of planning, you can run a lot from that 60 Watt system. You can at least take some bite out of the electric bill for mundane lighting. You can also use them to keep power up on a battery system for lighting in a remote barn. The uses are only limited by your imagination and creativity.
Q:highest known watt output for solar panels?
Those two requests are somewhat at odds with each other. Trina and Suntech make panels that are generally good value. You can search the web and find your best price. If this is for something that does not need to last long, you could get amorphous panels and save some money. But they will degrade quickly in a few months, then slowly over a few years.
Q:where does the solar energy go to when it hits the solar panel?
I think you got half the answer, but basically like everyone else said, the light hits the electrons and create energy now that energy, since it is now an electrical energy is then saved within batteries connected to the solar panel and that provides the power itself, so as long as there is sun, the batteries will charge up, once the sun goes away, the batteries slowly deplete, but once the sun hits, more energy. =)

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