Multifunctional 250W Poly Solar Panels Made in China

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China main port
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Min Order Qty:
2500 watt
Supply Capability:
1000000 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)


Max Power Current Lamp(A)


Open Circuit Voltage Voc(V)


Short Circuit Current Isc(A)


Temperature Coefficients of Isc (%/)


Temperature Coefficients of Voc (%/)


Temperature Coefficients of Pmp (%/)


Max Power(w)



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


Limited Product Warranty
Under normal application, installation, use and service conditions, if MODULES fail to conform to this limited product warranty due to defects in material or workmanship, then for a period ending 12 years from date of sale as shown in the invoice or Contract issued by CNBM SOLAR. CNBM SOLAR will, at its option, either repair or replace or refund the purchase price as paid by the client for these defective MODULES. The repair or replacement or refund remedy shall be the sole and exclusive remedy provided under the “Limited Product Warranty” and shall not extend beyond the 12 years period set forth herein. It will be performed directly to the direct client only. This “Limited Product Warranty” does not warrant a specific power output, which shall be exclusively covered under “Limited Peak Power Warranty” as follows.Multifunctional 250W Poly Solar Panels Made in China

Company Profile

China National Building Material (CNBM) Group Corporation

Multifunctional 250W Poly Solar Panels Made in China

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.



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.

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- Inquire about price/MOQ

Q:Solar Panel and Wind Power?
I live in the Southwest where the sun shines almost every day. I got a quote for Solar system to produce about enough to cover my annual usage. My annual average electrical usage costs about $2300, or about $90/MO. The system costs around $30,000 but I can get rebates and some of your tax dollars in subsidies to bring my cost down to under $20,000. I can borrow $20,000 for 3 years at 7% and pay $95/MO, so in 3 years I will have the system paid for. As you can see, I don't start Saving any money for a long time. Maybe the rates will go up in later years which will help, but My friends that have solar systems tell me things like controllers go bad over time and they cost like $3000. Will it ever pay for itself? Maybe. Please note. This still does not get me off the grid. This system will not support things like an electric stove, air conditioning, Pool pump running, etc. so I still need the grid for when these operate and my usage peaks. If I installed a system that would totally support everything 24/7 the cost would be astronomical. If you live in the east, midwest, or NW where you have cloudy days, your economic calculations will be much less favorable I would think, unless your power costs are much higher than mine..
Q:Need isntructions for solar panel diy?
But be aware that building your own panels will cost more than simply buying ready-made ones. This was not always true, but it is today. As you can see, this kind of information is widely available for free. Beware of scam sites that have a slick pitch making unrealistic promises, trying to sell you an e-book or video of the same stuff.
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:how to know the voltage level of solar panel?
Q:What is the principle and structure of solar panels?
solar controller: the role of solar controller is to control the working state of the entire system, and the battery played a charge protection, over discharge protection role. In the larger temperature difference, the qualified controller should also have the function of temperature compensation. Other additional functions such as light control switch, time control switch should be the option of the controller;
Q:What about solar panels?
This is a site that can help you estimate the size and number of panels that will power what you intend to provide for. There are plenty of sites selling the panels, so compare prices. Also, check whether your state is offering the rebate like the state of CA is and what the restrictions, terms and conditions are. Even with the rebates they are very costly, so be certain to calculate the pay off period for your application to see whether it is a cost efficient option for your energy usage.
Q:How do Solar Panels work?
Light consists of small packets of energy called photons. When photons with sufficient energy strike the photocell its energy is converted into electrical energy which is stored in the batteries as dc voltage. To run a TV an invertor is used which converts dc to ac. Now you can make a block diagram of it and present it TC
Q:what kind of rays are used in solar panels?
Electromagnetic...meaning light rays, primarily in the visible spectrum. Ultraviolet and infrared light rays actually degrade most types of solar panels, limiting their useful lifetime. That said, your question is not stated I'm not sure if that's the information you were looking for. Rays are not used in solar panels...rather solar panels are used to collect sunlight and convert it to energy--either directly into heat in the case of passive solar, or into electricity by the use of photovoltaic cells.
Q:Solar Panel Help, Trying to go green.?
LOL!! There is a lot more to this than you might imagine. This is a very rough approximation but look at the attached and column labeled 6.3KW. Look down that column and you see where it says Est. First Year KWH Generated ,025. So if we were to assume that each month it will produce ,025/2 kwh. (not true for January but I am trying to keep this simple. The installed price without any rebates is $44,050. ;-) Sorry! You will find some a little cheaper... some a little more expensive but none are a LOT cheaper than this. (this price does not even include energy storage, so the sun goes down and you will stop producing electricity). This is why, when people start looking at this sort of thing, they always do what they can to conserve electricity first. It is always much cheaper to conserve, then worry about alternate energy.
Q:I'm have a DIY solar panel and wanted to use micro inverters?
It won't work for several reasons. ) Enphase needs 24V modules, you made 8V ones. The voltage is too low to turn it on. 2) Only UL listed (or similar lab) panels are allowed to be connected to your house electrical system. Even if you did get them to work with the Enphase, you won't be able to get the system inspected, there is no way it would be allowed to be turned on by the electrical inspector nor the electric company. 3) If you got by obstacles and 2, and you had an electrical fire in your house, it is highly likely your insurance company would not pay you for it, as you used non-UL panels. DIY panels are fine for little back yard projects, but when it comes to your home, buy real ones. The price has dropped so much in the last 2 years, it's not worth it to mess around.

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