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 to make a solar panel?
All you need to do is to learn how to build solar panel to produce your own electrical energy through solar panels. These solar panels take and keep the energy from the sun and turn it into usable electrical energy that we can use every day in our ordinary lives. Generally, the majority of people that knew about solar panels think that they won't benefit from its use because they just work in sunny areas. That isn’t the case. In fact, the new generation of solar panels can produce a lot of electrical energy even on rainy weathers. Learning how to build solar panel is very easy: first they need to be installed (most of the time, on the roof of homes) and then they take the energy from the rays of sunshine and convert it from solar energy to electrical energy. Solar panels must be kept from shading, as shaded cells draw energy for themselves from other cells. Things you need to know: . Solar panels using monocrystalline cells have high conversion efficiency, and take up less space, but lack shade protection. 2. Solar panels using polycrystalline cells have even higher conversion efficiency, take up even less space, but still lack shade protection. 3. Solar panels using amorphous silicon cells have lower conversion efficiency, and take up more space, but do have shade protection. This can be especially important on a sailboat. Once you have determined the size and number of solar panels needed, you will be better able to determine where they will be placed. The best places depend on the roof's length and size of the panels. Take your time and think it through. The simple answer to how to build solar panel is none other than the sun. Select locations that will get maximum sunlight without shaded spots. In placing solar panels, consider the use of extra bars/braces to secure the panels. You obviously want them to remain stable.
Q:Information on making solar panels?
Typical solar panels like Engineer describes require a lot of space. A single panel may only light a single light bulb. You may want to look into a different way of generating electricity with solar, it doesn't use a cell to turn the sunlight into electricity, instead it uses mirrors to focus the sunlight onto a pipe between the mirrors. The heat causes water or another liquid in the pipe to boil and the steam created turns a turbine that produces the electricity. It has the potential to be less high-tech, more forgiving of minor design and structural problems and more affordable. I don't know of any system that is privately available but you can get more info at the link below. They're building a full test facility in Nevada right now. You could presumably cobble something like this up on your own.
Q:Need help with building a project involving solar panels?
Solar panels are designed to be used to recharge a battery or series of batteries, not for direct power. That is the inherent weakness of solar systems. The only way to have it work in low light conditions if to have several cells wired in series and have a voltage regulator to limit the amount of voltage that can be supplied. Other than that, add a battery and a charging circuit that the cell would supply power to.
Q:Wanting to add solar panels to my home?
Ok, well there are also other alternative energy sources, too, besides solar. There is tidal (but you need an ocean :] ), hydroelectric (river, stream, etc.), biomass/biofuels (burning garabage), geothermal (from within the earth, pipes in the earth), wind (windmills, wind, the sun to get wind), and there are others that don't come to mind. Solar energy would cost alot to be installed, and it would take up alot of space, but once installed it pays for itself and uses little to no labor. They all have positives and negatives. All of these are clean and renewable. Here are some sites that my teacher/professor gave us (we just ended alternative energy lesson.) Well I hoped this helped!
Q:How many solar panels do I need?
How image voltaic Cells artwork by utilizing Scott Aldous interior this textual content a million. creation to How image voltaic Cells artwork 2. Photovoltaic Cells: replacing Photons to Electrons 3. How Silicon Makes a image voltaic cellular 4. Anatomy of a image voltaic cellular 5. power Loss in a image voltaic cellular 6. image voltaic-powering a house 7. fixing image voltaic-skill themes 8. image voltaic-skill execs and Cons 9. a lot extra advice 0. See all actual technology articles you've likely considered calculators which have image voltaic cells -- calculators that by no skill favor batteries, and from time to time do not actually have an off button. see you later as you've adequate difficulty-free, they look to artwork continuously. you may have considered larger image voltaic panels -- on emergency street indicators or call packing bins, on buoys, even in parking a lot to skill light fixtures. besides the actual shown reality that those larger panels are not so user-friendly as image voltaic powered calculators, they are accessible, and by no skill that frustrating to p.c. out in case you recognize the position to look. There are image voltaic cellular arrays on satellites, the position they are used to skill the electric powered structures. you've likely also been listening to about the image voltaic revolution for the perfect two decades -- the concept quicker or later we can all use free electrical energy from the solar. it really is a seductive promise: On a brilliant, sunny day, the solar shines about a million,000 watts of power in conserving with sq. meter of the planet's floor, and if shall we collect all of that power shall we absolutely skill our homes and places of artwork for free.
Q:How can I make a sun tracker for a solar panel?
Since the sun moves in the sky on a very predicatable course you don't need a closed loop control system to track it. All you need is a clock-drive motor and the proper gearing for your latitude. The clock drive motor will move at a constant rotational velocity based on time, and when it is geared down properly the angle of the shaft will follow the sun. Make sure the clock motor is powerful enough to move the solar panel, etc. That's a start, anyway. .
Q:Why are solar panels still so expensive?
Photo okorder.com/... Notice it costs over $200 and it takes up a sizable amount of space. Plus you have to expose it to bright sun light. Over all this is not something the average consumer wants to spend money on or fuss with. If something is expensive, difficult or inconvenient to use then people won't use it. Just the basic economics of such a device limits its sales never mind its functionality and usability. Even if you made a small one buit into the cover to extend the battery you won't get much of an extension and you will increase the cost of your laptop. Consider how people shop, will they buy the more expensive laptop for a questionable amount of battery extension? Mass production can lower costs but in order to mass produce something you need a demand that will consume what you produce. But if no one wants the item because of the aforementioned issues than you can't justify mass producing the item. This is like the classic which came first Chicken or Egg problem, one doesn't happen without the other. Cost reduction doesn't happen without consumer demand. This is where tax incentives, subsidies, low cost loans and energy buyback contracts come into play in order to spur on demand and jump start mass production. You could also make electricity extremely expensive by taxing oil and carbon so that a Solar Cell becomes economically competitive to very expensive electricity. Problem with this option is the negative impact high energy costs have on economic activity. Just look at what happened a couple of summers ago when gas hit $4/gal. To spur on demand we need to incentives the use of Solar cells (and other alternative energy). This can be done through several means such as subsidies, tax incentives, low interest loans, energy buyback contracts etc...
Q:powering an imaginary city! (need solar panels!)?
There are panels made up to about 250 watts. You string them together in series/parallel to get more power. Depending on your average insolation, a 250 watt panel caqn produce anywhere from a kwh/day to two kwh/day (averaged over the year - it's less in the winter and more in the summer and can range from 0 to three kwh/day). Powering a city also requires energy storage for nightime or cloudy days. The cost of this can exceed the cost of the panels by a factor of three. DK
Q:Solar Panel Voltage Question?
The okorder.com/
Q:Does anybody know if there are any courses for solar panel installation, and/or what trades you need for this?
If you are in the UK, then the Centre for Alternative Technology courses (CAT in Wales) have had some great feedback.. .. A lot of companies are actively recruiting and offer training courses as part of their induction. Have a look at the bigger ones recruiting near you.

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