UL and TUV Approved High Efficiency 25W Poly Solar Panel

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Shanghai
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TT OR LC
Min Order Qty:
10000 watt
Supply Capability:
20000000 watt/month

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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 25 Number of Cells(pieces): 36
Size: 650×290×25mm

Product Description:

1.The Description of Product

Nowadays, with the shortage of the energy sources, people start to develop the solar energy, a new long lasting sources of energy which can be used almost anywhere. Why solar energy become so popular, we summarized the below some advantages of solar energy.

Type

CNBM Solar Polycrystalline Series

Materials

Silicon

Guarantee

12 yrs free from defects in materials and workmanship

No less than 90% within 10yrs and no less than 80%   within 25yrs

TUV(IEC61215&IEC61730), CE, UL

Application

 Photovoltaic/ solar/ green energy/ energy saving

Descriptions

1.High efficiency crystalline silicon solar   cell. Even if under the weak light, the solar module can produce maximum   power output.

2.Tempered glass (toughened glass):   Anti-reflecting coating and high transmission rate glass increase the power   output and mechanical strength of solar module.

3. EVA and TPT: Using high quality EVA and   TPT to prevent destroying and water.

4. AI frame: Without screw, rner   connection. 6 holes on the frame can be installed easily.

5. Junction box: Multi function junction   box with water proof.

6. Long lifetime: ≥25 years; Less power   decrease.

7. Good performance of preventing from   atrocious weather such as wind and hails.

8. Resisting moisture and etching   effectively, not effected by geology.

9. The certificate issued by international   authority: UL, TUV, IEC, CE.

 

2.Production Line

UL and TUV Approved High Efficiency 25W Poly Solar Panel

3.The Pictures of Solar Panels

UL and TUV Approved High Efficiency 25W Poly Solar Panel

UL and TUV Approved High Efficiency 25W Poly Solar Panel

4.Packing

UL and TUV Approved High Efficiency 25W Poly Solar Panel

5.FAQ

1). How to buy?

Contact with the talking button.

2).Can you do OEM for us?

Yes, we can.

3). How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The perfect time of receiving is related to the state and position of customers. Commonly 7 to 10 working days can be served.

4). Can we visit your factory?

Sure, welcome at any time is believing.


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Q:Does making solar panels cause more pollution than they take away when used?
It depends on what type of pollution you are talking about. Some of the newer cells that don't use silicone are made with dangerous chemicals that are just dumped into the local water supply when made in China or other places with no real environmental controls. No matter how much carbon free energy the cells produce they will never clean up the mess people made when building them.
Q:are solar panels worth buying?
There are different kinds of solar panels. The biggest division is between photovoltaic panels that produce electricity and thermal solar panels that produce heat for hot water and space heating. Commercial photovoltaic panels are from 8 to 24% efficient while solar thermal panels are from 60 to 80% efficient. Solar thermal panels especially for hot water have a much higher ROI (return on investment) than photovoltaic panels. A solar hot water system may have a payback period (when savings equal the investment) as short as 3 to 5 years while photovoltaic panels will typically have a payback period between 7 and 5 years. Solar panels especially in times of low interest rates may be a very worthwhile investment with a better return than you can find almost anywhere else. But they are also highly dependent upon your situation. Owning a home with a good southern exposure is a prerequisite.
Q:How to amplify current from a solar panel?
The previous answer about wattage is correct, so this is your first problem. Try increasing the number of solar panels by connecting them in parallel. To answer your question about increasing current, a voltage regulator wastes energy to regulate voltage. You need somthing that is not so wasteful, and that is a DC-DC converter. You will need to buy a 20V-5V model. this will give you less voltage but more current than you origionally had with your solar panel. You can alter voltage and current capacity, but you cant increase power (watts) with a DC-DC converter.
Q:do solar panels have to be in direct sunlight?
As above, but also make sure the panels you use will still produce if partially shaded. Some older panels will quit producing if you so much as put your hand over a small portion of it. Newer ones don't do this but are more expensive. As you may need more panel area to produce enough energy to fill a battery (if that is how you go) make sure you have the room/roof area for additional panels.
Q:Polycrystalline solar panels are good or single crystal solar energy is good
Pre-monocrystalline silicon solar cell photoelectric conversion efficiency of about 15%, the highest reached 24%, which is all types of solar cells in the photoelectric conversion efficiency of the highest, but the production cost is so large that it can not be a large number of extensive And commonly used.
Q:How much should a 00 watt solar panel cost?
On OKorder, they seem to be priced around $400. You do realize it takes more than just the panels...
Q:What is the working principle of solar panels?
the inorganic salts such as gallium arsenide Ⅲ-Ⅴ compounds, cadmium sulfide, copper indium selenium and other multi-compounds as the material of the battery;
Q:Solar Panel Question...?
The best way to find out is to determine the wattage of each piece of equipment you want to use and how many hours you want to use those pieces of equipment. Finally, calculate the total number of Watt-Hours you need at minimum. Then you need to research solar panels or mobile wind mills (they need to be pretty huge to get a decent amount of energy I think, so solar power is probably the way to go). You will need to figure out the efficiency of the solar panels, the size of the array, how you will turn it or if you will turn it at all (to face the sun to get the maximum energy input, or maybe to use mirrors so you don't have to turn it. Once you find a good configuration for your mobile kitchen, you need to calculate if the Watt-Hours you will generate on an average day (with average weather) is enough to power the equipment whose energy requirements you previously calculated. Then you have to keep in mind that some days will have no sun, and you may not be working on some days, but you can still capture sunlight. For each case, a large battery array will be required. If you had a guage on that array, you could also hook it up to the a small generator in case you need immediate power. It's an eco-friendly process, but the initial cost is high and it requires a lot of research and planning. This is why most people do not do it--not because they don't want free energy from the sun, but because it's not easy to start collecting that energy in an efficient way. Sorry I couldn't give you more specific numbers, but a solar panel sales agency should be able to estimate whether or not you could do it (they'd probably set it all up for you too). ^_^
Q:Why did the voltage of a solar panel drop significantly after putting it through a step down voltage regulator?
you cannot treat the open circuit voltage of a solar panel like a voltage source (like a battery.) the load response of the panel doesn't behave that way. small panels and panels that are producing less than about .5A are very happy to have their output voltage pulled down to whatever they're connected to (typically zero.) I observed the same phenomenon when i connected a 2V 725mA panel to a 2V 325mA fan -- the open circuit voltage of 5V dropped to 3V when connected to the fan, and returned to 5V when disconnected. The easiest workaround is to use 2V of rechargable batteries in parallel with the panel so that the battery holds the 2V potential difference and the panel just supplies the current. any excess current charges the batteries, so you might consider whether or not you need some type of charge controller to prevent burning the batteries via overcharging. there are actually very few applications of solar panels connected directly to circuits that i have seen that have any kind of robust performance -- if they work at all, they eventually die/burn themselves out in a couple of months. the best robust designs always have a rechargable battery and charge controller somewhere in the power circuitry to buffer the load circuit from the panel. .
Q:solar panels and wind power help?
A lot depends on location. If you haven't seen other solar panels or wind turbines in your general region, that could be a clue that the area is not really that good for them. The best thing to do is look in the phone book under solar or wind and see if there are local installers. In the event that your area is suitable for both, I think you should choose one or the other, to avoid complexity and extra cost in the system. We have solar electric. It really requires long-term thinking to get such a system, because the up-front costs are large. It will be 5, 0, maybe even 5 years' worth of electric bills that you pay up-front, in a suitable location. After the solar is installed, your electric bills will be lower or near zero, but it's only after that 5-5 years has passed that you actually start saving financially. A professional installer can run the analysis and you can see if the numbers make sense to you.

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