SOLAR PANELS FOR 250W ,SOLAR MODULES FOR 250W FOR QUALITY

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Loading Port:
Shanghai
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TT OR LC
Min Order Qty:
2500 watt
Supply Capability:
26000 watt/month

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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 250 Number of Cells(pieces): 60

Product Description:

Product Description:

 Product Description:

1.Structure of

Polycrystalline Silicon Solar Panel for 250W

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

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

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

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

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

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

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

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

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

 

2. Standard Test Conditions of Polycrystalline Silicon Solar Panel:

The opto-electrical specifications shown below are stabilized values being measured at Standard Test Conditions, Irradiance: 1000W/m2, Spectrum: AM1.5 at 25°C, The info below is subject to manufacturing tolerances. Where appropriate minutes of measurement are available and are used for the dimensioning of the installation.

Advantages of Polycrystalline Silicon Solar Panel

• CNBM Solar performance guarantees for 25 years

• 12 years guarantee for workmanship

• Timeliness of delivery

• Quality Products certified (TÜV, UL, CE, ISO)


SOLAR PANELS FOR 250W ,SOLAR MODULES FOR 250W FOR QUALITY

SOLAR PANELS FOR 250W ,SOLAR MODULES FOR 250W FOR QUALITY

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SOLAR PANELS FOR 250W ,SOLAR MODULES FOR 250W FOR QUALITY

5.FAQ of Solar Module

1. Q: Are you a factory or trading company?

A: We are a factory.

2. Q: Where is your factory located? How can I visit there?

A: Our factory is located in Jiangyin, Jiangsu, China, near Shanghai. You are warmly welcomed to visit us!

3. Q: How can I get some samples?

A: Please connect me for samples

4. Q: Can the price be cheaper?

A: Of course, you will be offered a good discount for big amount.


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Q:solar panel design question?
Because we and the trees are trying to solve a different problem. We want electricity, a tree wants light (and some heat) for photosynthesis. In getting the electricity we use Silicon for solar panels. (Sometimes Gallium Arsenide). And we exploit the same thing in Silicon that allows them to be computer chips. The fact that they conduct differently when voltage is applied. But for a solar panel that is done essentially in reverse. We GET a voltage difference (electricity) from shoving energy through it. Look up junction bias on google or yahoo for explanation. But the DESIGN problem is: You have to couple these panels together the right way - according to their bias. You can't string them up willy nilly. There is a pattern. And when one breaks in this pattern. (I mean when the actual panel cracks, which they do easily as they are brittle). It can change the overall bias. This can make even be worse than if it was removed, it can actually fight against the working ones. The efficiency is there in arranging them like a tree, but the practicality of maintenance would be daunting.
Q:how to make your own solar panels ?
It used to be possible to get broken solar cells for free from solar cell and solar panel manufacturers and then it's just a matter of labouriously measuring the voltage and current characteristics of each fragment and soldering them in a combination of parallel and in series to get a crude solar panel with the desired output but the manufacturers have caught on and now sell the broken fragments by the pound so it's not really a cheap solar panel anymore but it's still very labor intensive and results in a fragile solar panel that is readily damaged and quickly degrades. Not really worth the trouble any more.
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:I am doing a Solar Panel DIY?
DIY okorder.com
Q:Need Help, 2v Solar Panel for Emergency?
I okorder.com okorder.com/... well, I can't find what I have anymore - but anything that will attach to a car charger will attch to it. Now, a radio - if it charges now, you're good - but if it doesn't already charge ---- well, you could charge rechargable batteries with it, I guess.
Q:How to select solar panel for this application?
First, you need to make sure that your battery can take a regular 34Ah discharge without damage. The usual wisdom when using deep cycle lead-acid batteries is to allow for no greater than 50% discharge. This is to prevent the battery from ageing prematurely. Note that automotive batteries are not usually considered suitable for deep-cycle applications. Best allow for at least 200Ah capacity. Your solar panel capacity needs to take into account that whatever the nameplate output of the panel, that will be what it will produce under ideal conditions, actual output will always be less, often quite a bit less. You also need to allow capacity to cope with dull, overcast days when the light level is very low. You can get solar maps that will give you the sunshine hours and irradiation levels at your location. The solar panel capacity ends up being a juggling act between available funds/space and how critical it is that the light always works as desired. Let's say you had a 400W panel, which sounds quite generous. In the middle of winter, it may produce only 75W for 5 hours on a dull day, not quite enough to run the light for 0 hours. Would you expect several such days in a row? How many days could a 00Ah of battery capacity cover under these conditions?
Q:Anyone here have residential solar panels?
I have some panels on my house and no they are not cheap. If you look around you can buy them for around $4.70 per watt for a 00 plus watt panel, this will make them $470 or more. But you will get a first quality panel. And no I do not know of any fed. government programs for home owners. These kind of programs usually only go to large companies. And it does not look like our government is going to help seeing how the let the large oil companies keep there tax programs but refused to help solar. This just happened today when the senate voted on the energy plane. Good luck go solar
Q:how often do you have to replace solar panels?
solar cells never really stop producing, they just reduce their output over the years. There are many solar panels still running at 75% of their initial output and have been up for over 40 years. Most manufacturer will give you a 25 or 30 year waranty. That means that they guarantee that the solar panels will have no less than a 0% drop in the amount of electricity produced by each panel in 30 years.
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:Tell me the guidelines for making solar panels?
If your meter is actually running backwards, then you already have a credit. You must have a huge system, or not use much power at all. Most systems I have seen will at best just cut some percentage of the power used, primarily because the system only produces peak a few hours a day and power is being used 24/7.

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