High Efficiency 250W Monocrystalline PV Solar Panel CNBM

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Product Description:

High Efficiency 250W Monocrystalline PV Solar Panel

Quick Details

Place of Origin:

China (Mainland)

Brand Name:


Model Number:



Monocrystalline Silicon



Number of Cells:


Max. Power:


Optimum Operating Voltage (Vmp):


Optimum Operating Current (Imp):


Open Circuit Voltage (Voc):


Short Circuit Current (Isc):


Maximum Power at STC (Pmax):


Operating Module Temperature:

-40 °C to +85 °C

Maximum System Voltage:

1000 V DC (IEC) / 600V DC (UL)

Maximum Series Fuse Rating:


Packaging & Delivery

Delivery Detail:

two weeks after order confirmation



1) High Module conversion efficiency, through superior manufacturing technology

2) 0 to +5W positive tolerance for mainstream products

3) Certified to withstand high wind loads and snow loads

4) Anodized aluminum is for improving corrosion resistance

5) Anti-reflective, Highly transparent, low iron tempered glass

6) Excellent performance under low light environment





25-year performance warrant

10-year Product warranty



Electrical Characteristics: 

Item No.


Optimum Operating Voltage (Vmp)


Optimum Operating Current (Imp)


Open Circuit Voltage (Voc)


Short Circuit Current (Isc)


Maximum Power at STC (Pmax)


Cell  Efficiency


Operating Module Temperature

   -40 °C to +85 °C

Maximum System Voltage

  1000 V DC (IEC) / 600V DC (UL)

Maximum Series Fuse Rating


Power Tolerance

   0/+5 %


STC:  lrradiance 1000 W/m2, module temperature 25 °C, AM=1.5;

Best in Class AAA solar simulator (IEC 60904-9) used, power measurement uncertainty is within +/- 3%


Mechanical Characteristics:


No. of Cells







Glass 4.0 mm  tempered glass


Anodized aluminium alloy


Temperature Characteristics:


Nominal Operating Cell Temperature (NOCT)


Temperature Coefficient of Pmax 

-0.44 %/°C

Temperature Coefficient of Voc

-0.33 %/°C

Temperature Coefficient of Isc 

 0.055 %/°C


  • Refer to the Wmp range

       Our factory can produce solar panel and solar module from 1.5W-290w (1.5w, 2.5w, 5w, 10w, 20w, 40w, 50w, 60w, 80w,   85w, 125w, 135w, 150w, 165w, 180w), according to customers requirement.


       (A). Wmp range: 0.01W-6W, to be sealed with epoxy resin on PCB (printed circuit board), or to be sealed in plastic directly.

       (B). Wmp range: 0.01W-15W, to be encapsulated with PET, on PCB (printed circuit board)

       (C). Wmp range: 1W-60W, to be encapsulated with PET, on stainless steel, with holes for assembling purpose.

       (D). Wmp range: 1W-290W, to be encapsulated with tempered glass, EVA, TPT, together with aluminium frame, junction box and (if necessary)diode and cable.


  • Refer to the material:

       Monocrystalline solar cell or polycrystalline solar cell

       Efficiency range 14%-17%, cell size 5/6.


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Q:Solar Panels: How long will it be before solar panels are cheap & effecient enough so that everyone?
As the cost of fossil fuels continues to rise, solar panels become of more value. At one time they were looked on as a rather expensive investment with only a long-term pay off. Now oil is so expensive other sources of power such as wind, solar panels and geothermal energy become relatively cheaper. The efficiency of solar panels is expected to rise so that even in regions where sunlight is limited, these become a realistic investment.
Q:background of solar panel?
Hint: It's behind the foreground.
Q:Do solar panels float?
The ones in my neighborhood installed on telephone poles last year all have bird poop all over them and aren't generating any electricity. They can't even generate enough energy to pay for their construction, installation, and ultimately the work required to take them down and destroy them. Talk about a business case that has nothing but negative return on tax payer investment, all to further the lib agenda. All cost, 0 benefit. Classic lib business thought.
Q:How can I run my house purely off of solar panels?
No, okorder.com/
Q:Why should I use a Charge Controller for my Battery and Solar Panel based on these provided details?
Should I really be concerned with a Charge Controller? Yes. The main purpose of the charge controller is to protect the battery from over charging. Over charging reduces battery life. And spending extra money for a MPPT type controller will get more more useable power out of your solar panel. Would another battery of the same magnitude be helpful in preventing an accident? How much storage capacity does your current battery have (measured in kWH)? A ~$20 Kill-a-Watt meter would take a lot of uncertainty out of how much power you actually use. Even deep cycle batteries suffer reduced battery life from deep discharges. The battery sounds too small for the loads you describe so I would think you would want more. ---------------------------------------... After reading the other answer In a nutshell, with your small 2 volt starting battery, 24 volt panel and a mix of unknown loads, (which is correct), I thought I would elaborate. I had not considered the possibility that you bought a 24 volt panel for your 2 volt battery. Hooking the panel you bought directly to the current battery is a horrible idea. I you were lucky it would just cook the battery in a short period of time. You basically bought the wrong type of panel for a 2 volt system. I assume that there are no controllers on the the market for this situation. If that's the case, I don't know of any good way match the 24v panel to the 2 volt battery.
Q:Solar panel technology?
It isn't really that simple. First you have to decide if you are going to use it after dark and in cloudy weather. If so you are going to need batteries to store power. You are also going to need an inverter to convert the direct current, low voltage power to 20 volt alternating current. Once you have made those decisions you need to determine power requirements. Look at the back of each piece of equipment and find the wattage rating for the device. Add them together and you will have a starting point for power consumption. Since you will want to charge the batteries during daytime and you have parasitic drain from the inverter use you want to increase that number by 50%. When selecting the number of panels you want you have to assume they will not operate at the optimum they do deteriorate over time so de-rate them by about 50%. Once again, look at the data plate to determine wattage and get enough panels to meet the power requirements using the criteria I have mentioned.
Q:Solar Panels?
Well, the best way to buy solar panels is to shop by watts. Solar panels come in a wide variety of watts, from to over 200. However, the more watts a panel has, the more it costs. I would suggest getting small things first, and gradually converting to solar power so as to help the environment and save money. If you have an outdoor pool, buy a solar collector to heat it. It will extend your swimming season and once you hook it up, you won't have to worry about it. (My cousins have this on their pool.) Also, there are solar cell phone chargers available for purchase, you could get one of those. As for your house, you would need several solar panels and a converter to be able to power your whole house on solar energy.
Q:A question about Solar Panels?
Take a look on OKorder at some of the books on how to design solar energy systems. It is a bit more complicated than you might expect. I'm not sure what you consider to be a standard solar panel, but the 3' ones I have produce about 5 watts of power in full sunlight. Put simply, you need to convert the power from the solar cells (variable voltage) into a constant voltage usable for charging a batteries. Most of the low cost modules for this purpose can't handle more than about 00 watts. Larger systems are available that handle thousands of watts but they are quite pricey. Since you can't take out more than you put into your battery system, you can calculate about how long you can run a high-current appliance based upon its wattage rating, that of the battery system (adjusted for loss of converting to AC), and the charging system.
Q:how do i fix my solar panel? please hurry i need it for my science fair project?
If that solar panel came with the car, the panel is most likely defective. Make sure you're in bright sunlight, and try holding the car so that the wheels are not touching the ground. If the wheels still won't turn, even slowly, then the panel is bad. If each person in the class got one, see if you can try your panel on a friend's car, or their panel on your car. If this is just any little panel, it could be that the panel simply does not have enough voltage, current, or both to power the motor on the car.
Q:Solar panel questions...?
. Do they scratch easily? No How do I remove snow from them without scratching them? Just wipe the snow off 2. What does the upkeep of many solar panels consist of? Clean them with tap water and paper towels once a month. 3. Are all solar panels made from the same material, regardless of size? Basically the same.

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