Polycrystalline Solar Panels for 250W Series

Ref Price:
$0.50 - 0.65 / watt
Loading Port:
Shanghai
Payment Terms:
TT or LC
Min Order Qty:
6250 watt
Supply Capability:
40000000 watt/month

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Product Description:

1.Structure of  Polycrystalline Solar Panel for 250W Series

Polycrystalline Solar  Panel  for 250W l : High efficiency crystalline 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 Monocrystalline 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)

 

3. Solar Panel Images

Polycrystalline Solar Panels for 250W Series 

 

4. Solar Panel Specification

    Characteristics

Polycrystalline Solar Panels for 250W Series

 Temperature Coefficient of Cells

Polycrystalline Solar Panels for 250W Series

 Mechanical Data

Polycrystalline Solar Panels for 250W Series

 Limits

Polycrystalline Solar Panels for 250W Series

  Guarantees

Polycrystalline Solar Panels for 250W Series

 IV Curve

Polycrystalline Solar Panels for 250W Series

 

5.Quality certification and certificate

Polycrystalline Solar Panels for 250W SeriesPolycrystalline Solar Panels for 250W Series

Polycrystalline Solar Panels for 250W Series

 

Polycrystalline Solar Panels for 250W Series

Polycrystalline Solar Panels for 250W Series

Polycrystalline Solar Panels for 250W Series



6.FAQ

We have organized several common questions for our clients,may help you sincerely:

1.  What’s price per watt?

A: It’s depends on the quantity, delivery date and payment terms of the order. We can talk further about the detail price issue. Our products is high quality with lower price level.

2.  Can you tell me the parameter of your solar panels?

We have different series of cells with different power output, both from c-si to a-si. Please take our specification sheet for your reference.

3. How do you pack your products?

We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.

4.  Can you do OEM for us?

Yes, we can.

5. 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.

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Q:What does it mean when a solar panel is 50 watts?
You have to be realistic about the amount of power you can get from a solar panel. Solar panels only produce power when sunlight strikes them. So it's pretty obvious that solar panels don't give you any power at night, and that you aren't going to get as much power in overcast conditions, or when the sun is at an oblique angle to the solar panel, as you do in the middle of a sunny day when the panel is pointing directly at the sun. Solar panels are rated under standard test conditions. All manufacturers are obliged to use the same conditions for testing, so by comparing the rated output you can compare the performance of different solar panels. For more details plz visit : midsummerenergy.co.uk/solar_panel_information/solar-panel-power.html?power=50
Q:The voltage and power problems of solar panels
Because the MPPT controller has a wider input voltage range, it can also convert multiple voltages into current charge and better protect the battery.
Q:how would you build a solar panel?
i'd go to the solar panel store and buy one. It would be /0 the cost of trying to build one in my HOME shop.
Q:does vibration affect solar panels?
clearly. if the panel is moved, its action will be distorted. it should be kept in a level, stable location to reduce likelihood of such events occuring.
Q:How to connect solar panels?
Each solar panel will be wired to each other in parallel if you have more then one. When you wire in parallel the amps(current) from each panel will add to the total sum of current, but the total voltage stays the same. The voltage must match the rest of your system. For example, if your are using 2 volt solar panels you must be using 2 volt batteries and voltage regulator. Voltage regulator must be rated above maximum voltage and current(amps). Connect the output from the solar panels to a properly rated regulator, solar panel voltage regulators are rated by maximum voltage and amps, that will shut off the current flow to the batteries once the batteries are sufficiently charged there by preventing damage to the batteries. The way that you figure the rating needed for the regulator is by adding the maximum amps for each solar panel, this should be listed on the solar panel, and if they are 2 volt panels and they are connected in parallel then max voltage should be around 22 volts. It's the amperes that is most importance when choosing a regulator
Q:Why don't scientists use the design of a tree for solar panels?
I don't know much about solar power. This does however seem to be a very interesting idea. But I'd imagine that the complexity of building such a structure would be far more difficult that just laying thousands of large panels in an area. The shadow from higher panels may also have an adverse affect on the lower panels. Consider the tiny panels that do provide energy and compare them to a large panel that is easier to make.
Q:Making a Charger out of small solar panels?
The first item is whether the psp charger output is ac or dc. IF, AC then you are stuck as the panels put out DC. (Increasing the voltage enough to cover invertor losses is not practical in this instance!) IF DC, then you need to combine panels to produce 2 Amps, after which it is run through the 3 terminal VOLTAGE regulator to limit the voltage to 5v. That is 8 panels in parallel in 2 groups placed in series = 2amps at 8 volts, then add regulator for 2 amps at 5v. (Parallel increases amps, series increases volts.) Total panels required is 6 panels.
Q:Solar panels don't work when it's too hot/sunny?
WHAT? This is far from the truth, IN Scottsdale Arizona a small apartment complex was fitted with solar {photo voltaic cells in the late 70s. Every summer they sold electricity back to the power company. It gets up to 5 fairly often here, and as hot as 23 in the shade. On a roof top it is over 50 in direct sunlight. The opposite is true. When it is cloudy they produce less electricity. They may loose some efficiency when it is very hot, but not enough to make them not work at all, or even enough to really harm the output to any really appreciable extent. A new plastic photovoltaic material that produces about 40-45% of a silicon based solar cell is a neat option as it works when it is very cloudy, you can drive nails through it, and it is flexible. I think these items are kept artificially expensive by big business, but this is just a biased opinion of mine, but as far as not working in extreme heat, NO these solar panels work just fine when it is hot. I am in Phoenix Arizona, and it does not get a whole lot hotter than here. If the cells from the 970s worked OK newer ones are better and will do just fine too. Solar hot water heaters are a slightly different matter as they will over heat the water and the water must be mixed with cooler water, or you can really get into trouble. Maybe this is what he meant. Still I doubt it is enough of an issue to cause the device to be less efficient than a gas water heater, or electric, etc. Maybe he is referring to having to mix cooler water into solar heated water in a solar hot water heater, or some other system, Photovoltaic cells do not have any problems rendering them useless from hot weather on this planet, and in fact, they are used in space and it gets much hotter there.
Q:Can a solar panel be used as a NiCd cordless tool battery charger?
image voltaic charger employs image voltaic ability to offer electricity to units or cost batteries. they're oftentimes portable. image voltaic array: electric powered gadget alongside with an excellent array of related image voltaic cells image voltaic Panel is a crew of image voltaic cells arranged right into a panel which would be put in onto a flat floor. The panel captures image voltaic and converts it into DC ability.
Q:how instal solar panel?
There are MANY garden lights with built in batteries and solar panels that you just need to stick in the ground. There are also self contained units that are wall mountable. THAT way there is no need to run wiring, use battery stacks, etc. and will also probably be less expensive overall.

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