240W Polycrystalline Silicon Solar Panel

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200000 watt
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About us

We are a high-tech group wich specializes in solar products design,research, manufacture, sales,solar projects design and installation.

Our national sales service covers seven parts, including northeast, north, east, middle, south, northwest and southwest, international sales covers five continents and over forty countries, including Germany, Italy, Spain, France, America and Brazil etc.

Our present annual capacity is 6 million for wafer, 60MWp for solar cells,200MWp for solar modules and one hundred thousand for solar applications. It is expected that the annual capacity of 2012 will be up to 30 million for wafer, 300MWp for solar cells, 1000MW for solar modules and 2 million for solar applications.



This installation Manual contains essential information for the electrical and mechanical installation that your must know before installing CUSTOMER PV modules. This also contains safety information you need to be familiar with .All the information described in this manual are the intellectual property of CNBM and based on the technologies and experiences that have been acquired and accumulated in the long history of CUSTOMER. This document does not constitute a warranty, expressed or implied.

CUSTOMER does not assume responsibility and expressly disclaims liability for loss, damage, or expense arising out of in anyway connected with installation, operation, use or maintenance of the PV modules. No responsibility is assumed by CUSTOMER for any infringement of patents or other rights of third parties that may result from use of PV module.

CUSTOMER reserves the right to make changes to the product, specifications or installation manual without prior notice.


240W Polycrystalline Silicon Solar Panel

Data sheet

Maximum Power240W
Frame ColorWhite
Manufacture SiteChina
FrameAnodized Aluminum Alloy



1. How long will my inquiry get response?

 Your inquiry related to our products or prices will be replied within 24 hours. 

2. Can I get professional service and suggestion?

Well-trained and experienced staffs to answer all your questions in fluent English. 

3. Do you accept OEM or customized design?

OEM & ODM, any your customized lightings we can help you to design and put into product.

4. What if I need specific design?

Distributorship are offered for your unique design and some our current models.


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Q:Solar Battery System?
A solar panel is usually 36 cells and intended to charge a 2V lead acid battery. The battery in laptops may be somewhere between 5 and 20V. The panel might charge a laptop when it is cold, but they heat up in the sun and then it would no longer charge. Typical lap top power supplies are 3 to 4 amps. You need 2 panels in series to get enough voltage to charge the battery directly, but this is wasteful. If you want to charge at the same rate as a lap top power supply you need large panels to provide 5 amps. The 5 Amp panel will only give 5A when pointed directly at the full sun. There may be between 2 and 5 hours a day equivalent full sun depending where you are, time of year. If you want more than that, you need larger panels, or more than one in parallel for a 2V system. It makes sense to charge a 2V battery with the solar panel, and use that to operate the lap top with a car type power supply for a laptop, which runs from a 2V battery (see link below for an example). Get the biggest panel you can afford, and the battery should be larger if you want to run the lap top when the sun isn't shining. Perhaps a 20AH battery is a minimum size. All this costs more than a lap top.
Q:I have a question about solar panels?
Read this link.
Q:What kind of batteries to use for a solar panel?
If you will be storing them outdoors, you can use auto batteries. Indoors, use sealed marine batteries. Number and size depends on your needs. You will need a charge controller between the solar panels and the batteries to get the maximum power out of the array and to avoid damage to the batteries. And you will need an inverter to convert the 2 or 24 volts to 20 or 240 VAC. One large lead acid battery will supply about 000 watt-hours of energy, enough for 200 watts for 5 hours. You have to look at your loads and decide on how many batteries you need. Frequently it is cheaper to buy new appliances that use less power, as that power difference can save a lot of money in batteries, inverter, charge controller and solar panels. But it sounds like a few thousand watt-hours will be enough, or 2 large batteries. The real limiting factor is how much money you want to spend for the solar panels themselves. .
Q:Question about solar panels?
How image voltaic Cells artwork by employing Scott Aldous interior this text a million. creation to How image voltaic Cells artwork 2. Photovoltaic Cells: changing Photons to Electrons 3. How Silicon Makes a image voltaic cellular 4. Anatomy of a image voltaic cellular 5. capability Loss in a image voltaic cellular 6. image voltaic-powering a house 7. fixing image voltaic-skill subject concerns 8. image voltaic-skill execs and Cons 9. plenty extra counsel 0. See all actual technology articles you have in all threat seen calculators that have image voltaic cells -- calculators that for the time of no way want batteries, and infrequently do not even have an off button. as long as you have sufficient gentle, they seem to artwork constantly. you have gotten seen larger image voltaic panels -- on emergency highway warning signs or call bins, on buoys, even in parking plenty to skill lighting fixtures. in spite of the actuality that those larger panels are not as issue-unfastened as image voltaic powered calculators, they are accessible, and not that perplexing to become attentive to in case you already know the place to look. There are image voltaic cellular arrays on satellites, the place they are used to skill the electrical powered systems. you have in all threat additionally been listening to with regard to the image voltaic revolution for the final 20 years -- the theory that sometime we are able to all use unfastened electrical energy from the solar. this could be a seductive promise: On a vibrant, sunny day, the solar shines approximately a million,000 watts of capability in keeping with sq. meter of the planet's floor, and if we could desire to hold at the same time all of that capability we could desire to truthfully skill our residences and workplaces for unfastened.
Q:Solar Energy Panel VS. Energy Efficient Bulbs?
get a voltage tester and test the output from the panel if it is a 24 volt output which is then inverted the reading should be that of the inverter. however if you solar panel installer installed an LCD panel that controls the electricity you can monitor any faults from the panel. Make sure that the panel you feel is not working is producing the same amount of electricity as the others. As for the bulb buy a new one from a different make and see what happens but by testing the output voltage and power you are bound to find the fault.. I have just thought of this the panels supply electricity to big batteries that then distributes power to all the house perhaps the battery supplying power to your room is faulty or the connections to the inverter might be faulty. BEST option if you can afford it because it will be expensive is to buy a solar monitoring system that control the panel and batteries you can even connect it to your laptop and control all the power.
Q:Why do solar panels stop working?
Panel degradation can occur in many ways, but they generally take a long time (40yr old panels are still working...). One problem is diffusion. Since the cells are at a finite temperature and receive energy from the light, atoms in the structure can migrate around the cell. If you mix up materials from either side of the junction, you can reduce or remove the internal field and so charge separation no longer occurs, meaning no more current output. This is generally a very, very slow process. My current research is on the back contacts of cadmium-telluride solar cells. CdTe forms a junction with metals, and this junction has a built in electric field that tries to stop the current going out of the cell. This is bad! It reduces the power you get out. To overcome this, copper is sometimes added. This really cuts down on the restrictions on current, but copper is very diffusive. Within weeks at room temperature it can jiggle its way along grain boundaries (the solar cells aren't one big crystal, but a load of small grains. Our lab makes ones about 0.006mm across). Whilst copper at the back contact is good because it cancels out the effect of the field there, once it gets to the cell junction it has a worse effect. It can act as a 'recombination centre' or 'shunting pathway' - it either absorbs the free charges or takes them somewhere useless and cuts the power output. Copper is a very obvious and quick acting cause of solar panels reducing in output. I believe a similar effect is true for other cells, just with different materials. The quality of the junction degrades slowly as heat and light give energy to atoms in the lattice and make them jiggle around a bit. Once you have things out of place, performance degrades.
Q:Solar panel connected to battery ??
. Make sure you got the right type of battery that allow to charge from the solar panel. 2. Make sure you use a device which I forgot the name but it will make sure the charge go one way in case the light go out so will not drain the battery while it is hook up. 3. Make sure you got the right charge from the solar panel to charge the battery. Reason is easyier to swim down the river or is it easy to swim up river.
Q:Solar Panels Project?
If okorder.com/ for some ideas.
Q:how do i build a solar electric panel for my home?
Solar energy is very expensive. Or I should say, solar panels are expensive, because once you install them the power is free. A typical residential solar power system that supplies around a kilowatt of power at best conditions (noon, sunny day) will cost about $0,000. This includes the solar panel, the inverter (converts DC into AC), the cabling, but not installation (that would probably run you another $2000). One kilowatt is not that much electricity. It would run one microwave oven, or one hair dryer, or 0 light bulbs, and nothing else. Most houses use 3 times that at peak hours. So you would still likely get some power off the grid at peak time, and other times you can sell it back to make a little money. The good news is that solar panels are getting cheaper. They are around $5 per watt now, and are projected to drop to half that in the next decade. At some point, it will reach the sweet spot that makes solar an attractive alternative to grid power and more people will jump on board. There are some tax incentives too, but more would certainly help.
Q:Solar Panel Batteries?
If he is going to be running off batteries at night, he would be better off with traction batteries. Traction batteries are true deep cycle and can better withstand deep discharge. Golf cart batteries at Sam's Club (the other half of Walmart) are traction batteries. If your grandfather needs safe refrigeration, a mini fridge won't do it. A 0 fridge takes too much power to run off solar panels and most won't hold their cold very well if unplugged for long. I run a fridge off grid with hybrid deep cycle marine starting batteries. It's an Engel 40. The price has gone up over $00 since I bought mine. It's a real fridge with a compressor and freon 34a. But it runs on 2v dc or 0vac and only uses 36 watts running because of a special compressor design. It will freeze food if you turn the dial down to 2 out of 5. It can also deep freeze. I use mine to keep eggs, milk, cheese and fruit juice. Your grandfather would need 400 amp-hours name plate rating of batteries at 2v to run the Engel, and probably 00 real watts of panels to recharge his battery bank. The Harbor Freight 45 watt panel set only puts out 30 watts on a clear cool day. That won't do it.

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