250w Solar Panel Solar Energy/Solar Modules Good Quality

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
10 watt
Supply Capability:
100000 watt/month

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Product Description:

 Packaging & Delivery

Packaging Details: 25PCS/Pallet, carton box with wooden pallet or wooden box with pallet

 

Delivery Detail: 7-15 days according to the order quantity

 

Product Description

A Grade 250w high efficiency Poly PV Solar panels

Max Power Voltage Vmp(V)

31.5

Max Power Current Lamp(A)

7.94

Open Circuit Voltage Voc(V)

37.5

Short Circuit Current Isc(A)

8.72

Temperature Coefficients of Isc (%/)

0.0825

Temperature Coefficients of Voc (%/)

-0.4049

Temperature Coefficients of Pmp (%/)

-0.4346

Max Power(w)

250

 

We now provide
• Monocrystalline Solar Panel
• Polycrystalline Solar Panel( multicrystalline silicon Solar Panel)

Features of our products:
• High conversion efficiency mono/poly-crystalline amorphous silicon solar cells 
• Modules incorporate high performance bypass diodes to minimize the power drop caused by shading 
• High transmittance, low-iron tempered glass 
• High performance EVA encapsulant to prevent destroying and water.
• AI frame: without screw, corner connection. 8 holes on the frame can be installed easily
• Good performance of preventing from atrocious weather such as wind and hails
250w Solar Panel Solar Energy/Solar Modules Good Quality

Company Profile

China National Building Material (CNBM) Group Corporation

250w Solar Panel Solar Energy/Solar Modules Good Quality

CNBM International Corporation is a professional solar panel manufacturer in China for CNBM brand . Silicon panel ( silicon module), as our main product, has high quality and good service. Our products are very popular in Europe, Australia, England, Middle East, Mexico, Argentina, Chili, Singapore and Africa.

Furthermore, our products have gained international authorized certificates like TUV, UL and CE.

China National Building Material (Group) Corporation (CNBM), established in 1984, is one of the largest State-owned group corporations of building & mechanical materials which specializes in the design, manufacturing and distribution of building materials in the world.

As the whole world turns “green”, CNBM enters into the Photovoltaic Industry in 2005.After 6 years' fast growth, now our annual capacity is 500MW solar panel and 500MW solar cell.

 

Advantages:

1.Solar Energy&green energy.

2. Easy to install, operate and maintain.

3. Ideal lighting products where normal electric is not convenient.

Packing details:

Quantity of carton :3pcs 

Color Box size: 28.5*11.5*487.5px , 

2.66kg/pc 

Our services:

1. Sample: Sample is available. Please send us email about your detail consignee information: name, address, zip code and tel. Then we will contact you and send samples to you.

2. Small order: We can accept small order for this product. Please let us know your order quantity.

3. Customize: We accept OEM service and can customize products as customers' design.

4. After-sales service: We will give customers active feedback within 24hours after receive any of customers' questions.

FAQ

We have organized several common questions for our clientsmay help you sincerely

1.what price for each watt?

it depends on the quantity, delivery date and payment terms,

2.what is your size for each module? can you tell me the parameter of your module?

we have different series of panels in different output, both c-si and a-si. please take the specification sheet for your reference.

3.Can you provide the peripheral products of the solar panels, such as the battery, controller, and inverter? If so, can you tell me how do they match each other?

Yes, we can, we have two companies for solar region, one is CNBM International, the other is CNBM engineering Co.

We can provide you not only the solar module but also Solar Cells, the off grid solar system, we can also provide you service with on grid plant.

4What is your warranty system?

 Our product  performance guarantees for 25 years

12 years guarantee for workmanship

Timeliness of delivery

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

5.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.

6. Can you do OEM for us?

Yes, we can.

7.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 pecific time of receiving is related to the state and position of customers. Commonly 7 to 10 working days can be served.

Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:Cost of Solar Panels for basement?
Only after you give an estimate of the power consumption you will have in the basement. Obviously you do not have a clue about solar panels or their usage. Suggest you find a book and start reading.
Q:how do I become a solar panel contractor?
You okorder.com
Q:Where are the best places to put solar panels?
Photovoltaic panels are designed to be put on a roof, exposed (obviously) to sun, but also rain, snow, and wind. Generally, there is even a rating for something like hail. A good mounting system will be stronger than the underlying roof, so will withstand most anything short of a direct hit by a tornado or hurricane. There are a few panels from the 70's (that's the 970's) still in operation, I believe. They look horrible, but are still producing a little electricity. Since then, housings have improved, and panels generally have a 25-year warranty today (some cheap ones are 20-year warranty).
Q:how the power output of solar panels fitted to a house can charge?
Solar panels do NOT get charged, so the question is junk, or you misstated it. Solar panels are used to charge a battery bank, which stores energy for times when there is no sun. Then energy from the batteries is used, via an inverter, to power appliances in the house. OR do you mean how the power output of solar panels can CHANGE? In that case, they change when the sun moves, such as behind a cloud, or just changes angle in the sky, or goes out.
Q:How can I regulate current from a solar panel?
Lithium batteries do have special charging requirements. I would recommend that you use the 2 volt charger that came with them to keep them happy. Automotive power systems can have voltages as high as 4.5 volts when the engine is running so there's no need to limit the output of the panel to anything less than that. Check with the charger manufacturer to see what it will withstand. Some will work with systems up to 24 volts nominal (up to 29 volts actual) found in larger commercial vehicles such as trucks and busses. If your charger will work with both 2 and 24 volt systems you might not need anything extra to use the unregulated output of the panel. Otherwise I'd recommend a shunt regulator to clamp the output of the panel to no more than 4.5 volts. That way it would dissipate (waste) very little of the panel's power, and even that would only be during those rare times when the panel is producing maximum output. Such a device could be as simple as a high power zener diode, a low power zener coupled with a power transistor, or a precision shunt regulator such as a TL43 coupled with a power transistor. A more complex way would be a to use buck/boost regulator between the panel and your charger. You might gain a slight advantage under low light conditions when the panel isn't putting out much but the overall efficiency could end up worse than the simpler shunt regulator. Under optimum conditions, I would expect it to take a full day for a 3 watt (peak) panel to charge just one of your 35 Wh batteries. Charging an intermediate device such as the Sherpa 50 through its built in charger and then using it to charge your battery through yet another charger would severely cut your overall efficiency. Depending on how long you'll be gone, it might be far more practical, reliable, and economical to just carry (or find a way to be resupplied with) a few additional fully charged 35 Wh batteries. Don
Q:how many solar panels will i need?
you silly ! with Solar there is always room for error . you have to build it in to your numbers . solar is full of errors . So you should plan on producing at 3 times what you expect you will need . then you have enough .
Q:What is the anatomy of a solar panel?
You've probably seen calculators that have solar cells -- calculators that never need batteries, and in some cases don't even have an off button. As long as you have enough light, they seem to work forever. You may have seen larger solar panels -- on emergency road signs or call boxes, on buoys, even in parking lots to power lights. Although these larger panels aren't as common as solar powered calculators, they're out there, and not that hard to spot if you know where to look. There are solar cell arrays on satellites, where they are used to power the electrical systems. You have probably also been hearing about the solar revolution for the last 20 years -- the idea that one day we will all use free electricity from the sun. This is a seductive promise: On a bright, sunny day, the sun shines approximately ,000 watts of energy per square meter of the planet's surface, and if we could collect all of that energy we could easily power our homes and offices for free.
Q:Why should people use solar panels more for houses?
I purchased my system because it is a good financial investment. My system will pay for itself in less than 6 years, thanks to a generous rebate from my utility. Now when the nearly 20% rate increase my city just approved goes into effect my bill will go up about $4 a month instead of $40.
Q:Solar panel question..?
Little solar panels on lights are very low power. The battery in one such may be 0.5 Amp-hours and .2 V ; it may be different but it should be marked on the panel/battery/manual. An outlet in your house is designed to run on 20 V (typically in N. Am.) and they run on alternating current (AC) whereas the panel generates direct current (DC). (If you don't know the difference, do not worry to much but just understand that they are not directly compatible.) You therefore need an inverter to change DC to AC (and lose some although inverters are now very efficient). But the amount of power generated by those panels is still very small. That is why solar lights are low power (just a few watts in most cases). To make things even more irritating, phone chargers do not work off 20 V AC as you are charging the battery and need a low voltage DC -- which is what the solar panel is giving you. It is almost certain that the voltage from the panel will be less than the voltage required for the phone. The charger is mostly cable but there is a black box incorporated and it should say what the voltage and current output are (the input will be 20V). So you should be able to overcome this not by hooking up the panel to a 20V outlet and then plugging the charger in but by hooking up the panel to the phone directly if you can get enough voltage out of the solar panel (or hook up several) and if you fashion a connection device. They already make them -- solar battery chargers and I am sure you can enter that into a search engine and find loads. Typically the panel alone is much more than a solar light -- which shows the relative power requirements.
Q:New Prius; Solar panles a good design?
treehuggers already want priuses. the solar panel is meant to run an electric ac system that cool's the prius if the car gets too hot inside. its nice, but personaly, i'd rather have it charge the battery.

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