240-250W PV Polycrystaline Solar Moduels 12V & 24V

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Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
50000 watt
Supply Capability:
10000000 watt/month

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Item specifice:

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

Product Description:

Specifications

250W poly pv solar panel solar module 
We are manufacturer,can do OEM. 
Certified to TUV,CE,ISO9001 
Warranty:7 years 

ITEM NO 

MS-P250(60)

Type of cell

Poly

Maximum power (Wp)

250W

Maximum power voltage (V)

30V

Maximum power current (A)

8.33A

Open circuit voltage (V)

36V

Short circuit current (A)

8.96A

Number of cells (Pcs)

60

Size of module (mm)

1640*990*40mm

Maximum system voltage (V) 

1000

Temperature coefficients of Isc (%)

+ 0.1/ °C 

Temperature coefficients of Voc (%)

-0.38/ °C 

Temperature coefficients of Pm (%)

-0.47/ °C 

Tolerance Wattage (e.g. +/-3%)

+/-3%

Surface Maximum Load Capacity

60m/s(200kg/sq.m)  

Weight per piece (kg)

18.5kg

Junction Box Type

( TUV )

Connectors and Cables Type

(TUV)

Length of Cables (mm)

900mm

Cell Efficiency (%)

≥15.5%

Output tolerance (%)

+/-3%

Frame (Material, Corners, etc.)

Aluminum

Warranty

7Years products warranty and 25 years 80% of   power

Standard Test Conditions

AM1.5  100mW/cm2  25°C 

FF (%)

72%

 

Products Details show:

 

240-250W PV Polycrystaline Solar Moduels 12V & 24V

240-250W PV Polycrystaline Solar Moduels 12V & 24V



Limited Warranty:

7years limited warranty on material and workmanship

25 years limited warrranty of 80% power output

(For detailed please refere to Limited Warranty Certificatd issued by our company) The speicification please find contact us at any time!

 

Payment Terms

Payment Terms

T/T

EXW

30% T/T in advance, paid the balance before shipment

FOB

CFR(C&F)

30% T/T in advance, paid the balance against copy of   B/L

CIF

L/C

L/C amount above 50,000 usd, we can accept L/C at sight

West Union

Amount lower than 5000usd

Paypal

Delivery time

7~10days after receiving payment for one container

 

 FAQ

Q 1. what's the payment term?  

A. We accept TT,30% deposit and 70% balance agaisnt copy of BL

Q 2. how's the delivery time ?

A. usually it will take about 25 days for production

Q 3. tell me the standard of package?

A. For the small capacity, it use carton, but for big capacity, we will use strong wooden case for protection

Q 4. what kind of material of transformer?

A. we have two types, one 100% copper and the other is copper with aluminum.It depends on your requirment. In fact,those two have no difference if normal work well. Only except the longlife. Copper is better and also higer price. 

Q 5.Could you offer Form A or C/O ?  

A. It totally not a problem. We can prepare relative documents to forgin affairs office or other office to apply for this certificate.

Q 6.Would you accept to use our logo ?

A.If you have good quantity,it absolute no problem to do OEM.

Q 7.We want to know month capacity.  

A. It depends on which model.For example for relay type small capacity , month capacity can reach near 20000pcs   and big capacity near 3000pcs.

 Q 8.Where is your market?

A. Our products are popular in russia, indonisia, Philippines,italy, america, pakistan and so on.Some

 of them are our regular customers and some of them are developing. We hope you can join us and make mutural benifit from our cooperation.

 


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Q:How long does it take to charge a 2v deep cycle battery with a 0 watt solar panel?
What is the open circuit voltage and voltage under load with the panel in full sun? Assuming it is typical of many 0W panels, the open circuit voltage is 2V and the voltage under load is about 7V. 0W/7V is 588mA. A typical car battery is 40 Amp Hours. Amp Hours, or Ah, is the capacity of the battery. How much current a battery can delivery starting a car is called cold cranking amps. A deep cycle marine battery will typically be more than 40Ah. A 40Ah car battery at 50% charge will more than likely start your car in fair weather. Cold weather is another story. So, to get a completely dead car battery to 50% - 20Ah - would be maybe two days of full sunlight - with only a 50% charge, or about 2.2 Volts. Not a great battery charger - however - It makes a great supplement, and can offset the use of DC powered equipment in the vehicle while the engine is off. Things like low-wattage lights, cell phone chargers, tablets, and the like will drain the battery down that much slower. I have a number of powered but low current items on in my truck all the time. A panel helps offset some of that drain if I don't drive for a few days.
Q:help setting up a solar panel system?
ever looked at the light from a 45 watt bulb? it's true that in a cabin, if you're in the right place, you can read from it. however, assuming that you get 6 hours of sun, you can run your light for 4-5 hours. and nothing else. if you're hoping to run a stove, you're going to need several hundred watts. not sure what tools you're thinking of, but i don't know of many that run on 2v DC. (not sure that i know of a stove that runs on 2v DC either, but you can look that up.) for tools, you might want to consider a gas powered compressor and air tools. that'll give you the strength that you need. yes, i know that's not what you were thinking, but pretty obviously you're going to need to do a bit more thinking. even a minifrig is going to use considerably more than 45 watts. and that would be 24 hours a day. remember, a minifrig has considerably less insulation. you can't save much and per pound, it takes more juice.
Q:Is photovoltaic array another name for solar panels?
Photolvoltaic arry is the more technical name and the more accurate name for solar panels. Photo indicates light and voltaic indicates a voltage is produced.. Array is just a layout of these little light sensitive electricity generating panels. Actually Solar only idicates the SUN and not light in itself..
Q:How Do solar panels work?
Short version is that the sunlight knocks electrons loose from a semiconductor panel, and those loose electrons generate an electrical current. The solar panels have lots of cells arranged in series parallel to get to a higher voltage (usually 2 or 24 volts) and current. This is sent to charge batteries under the control of a charge controller. The voltage from the batteries is sent to an inverter that converts the 2/24 volts to 20/240 VAC for household usage. .
Q:How do you install solar panels?
This is still not a trivial project, although it is getting easier. The usual way to do this is to contact professional installers for free quotes. In the process of getting the quote, you'll learn what considerations go into sizing a solar system. They'll look at your energy usage, and also whether your house has a good, clear, south-facing roof that doesn't get shaded during the day. They'll also look at your electrical panel to see whether they can hook right up, or additional work is needed. There are rumors of companies like Akeena planning to sell panel kits in Home Depot (in areas that Akeena does not directly serve). The idea would be that a pro installer would pick up the kit there, but a highly skilled homeowner might be able to make it work. A permit will probably be required by your jurisdiction, but that's no different than applying for any other construction. And you'll have to inform your power utility in advance, which may or may not be routine, depending on how often people connect solar in your area. If you want to see how we connected our system, a link is below. I did not really save money by doing it myself. That's because pro's can get better prices on the panels, which makes up for the labor cost.
Q:Is using a thick cardboard backing for a solar panel ok?
In commercial panels some sort of polymer is often used for backing. With a 2V panel there are 36 cells, which means they can still output about 4V for charging a 2V battery even when hot. The voltage reduces about 2.2mV per degree C per cell. Commercial panels are meant to work up to about 60 degrees C, which is quite normal in the sun. I have found just lying them on the grass the air circulation is reduced, and they get too hot to charge a 2V battery. This means the backing should have good thermal conductivity while being an electrical insulator, as well as mechanical strength. The cells are often encapsulated in a thermosetting plastic first, then laid face down so a liquid polymer can be poured as backing.. I have removed commercial panels from their frames and re-packaged them to work in a very wet environment. I suppose cardboard would work, but it is unlikely to have good cooling so the expected voltage would be lower. As you intend to only operate indoors I suppose it is unlikely you have full sun most of the time anyway, so there could be less heating and less output current accordingly. I think the cardboard is only useful for a short time, and is not strong enough. Temperature wise it is marginal. The link below uses plywood for the backing. The backing is supposed to provide strength too. A sheet of some sort of plastic or laminate (including melamine laminate as in kitchen bench tops) comes to mind too. The cells are supposed to be bonded to the backing for better thermal conductivity. Use silicon RTV to stick cells to the backing, very thinly.
Q:Photodiode vs solar panels?
yes. Any semiconductor junction will convert light into electrical energy, just shine a light at an LED (connect LED to voltmeter) and you'll see a small voltage produced (if you configure the meter as an ammeter it will develop a very small current). Solar panels are just VERY large surface photodiodes.
Q:What are solar panels?
Solar okorder.com
Q:what is one benifit in a solar panel?
what do you want to know ? there is so many benefit of the solar panel , such as no pollution , ETC
Q:solar panels, help?
This is pretty much an exercise in knowing units and dimensional analysis. Watts are in Joules/second. So every second a square with the area(meters^2) of meter^2 receives 380 joules from the sun. In your case the square is the solar panel. So find the area of the solar panel in m^2. If you multiply area times intensity you can see that the meters cancel out and you are left with Watts(J/s). Since you want the Joules received in an hour you again multiply by how many seconds are in an hour. Leaving you with joules. What you have now is the total energy, but your solar panel is only 26% efficient, so just multiply by .26 and you will have your energy.

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