CNBM Poly Crystalline Solar PV Modules 250W

Ref Price:
Loading Port:
China main port
Payment Terms:
Min Order Qty:
100000 watt
Supply Capability:
10000000 watt/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 250 Number of Cells(pieces): 60
Size: 1640*992*40mm

Product Description:

About us
CNBM International Corp, established in 2004, is the business entity for trade and logistic of CNBM Group.With the advantages in Cement, Composite Materials, New Building Materials and Engineering, CNBM mainly concentrate on coal, steel and construction equipments and give priority to solar and wind energy development.CNBM International is highly recognized by its business partners and clients all over the world and has established good business relationship with the customers in over 120 countries and regions all over the world. 


Poly Crystalline PV Modules 250W




All PV models must be grounded by electrical connection of the module frames to ground. Please be careful in arranging the system ground so that the removal of one module from the circuit will not interrupt the grounding of any other modules.

The modules should be grounded to the same electrical point as described below.

Each PV module has a hole on the side frame of either a bolt, nut and washer grounding the module to the frame, a ground lug fastened by bolt or screw, or appropriate screw(hardware not provided).An example of acceptable ground connection using a bolt, nut and washer retaining a ground lug is shown in figure 3,in a connection of this type, the hardware(such as a toothed locked washer/star washer) must score the frame surface to make positive electrical contact with the frame. The ground wire must be considered within the requirement of local and regulation at the site of installation.



CNBM Poly Crystalline Solar PV Modules 250W



 1.   How long will my inquiry get response?

 Your inquiry related to our products or prices will be replied within 24 hours.  

 2.  Can I get professional service and suggestion?

Well-trained and experienced staffs to answer all your questions in fluent English.  

 3.  Do you accept OEM or customized design?

OEM & ODM, any your customized lightings we can help you to design and put into product.

 4.  What if I need specific design?

Distributorship are offered for your unique design and some our current models.



Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:How long does it typically take for solar panels to pay for themselves?
Solar Panel Break Even
Q:lighting my pond with solar panels?
You can get 6V cells and SLA batteries. You would get a panel and batteries suitable for the lights you get though. Depending on what you want to do, you shoud look into LED lighting, which is more efficient than incandescent. You do not want to drain your battery flat. Rather you want to draw only 2/3 of its capacity of so. You would find the lights you want (likely 2VDC), and add up the current they draw, and get a battery that would supply enough capacity (in AH, which is amps time hours) for a couple nights use (to account for weak solar days), and a solar panel to charge two days of use in one good day. You would use a charge controller so that the solar panel does not over charge the battery, and some sort of dusk timer to turn your lights on at dusk and off several hours later.
Q:How many solar panels?
Are you going to have anything else on electric? Water heater, Stove, Refrigerator, Dishwasher, Washing machine, lights, fans, or a barn with lights and possible water heaters for winter? If so, you may need a lot more panels than that. We use 6.8 kW of panels in a place not known for sunny days, and do all right, but sometimes have to be careful if it is cloudy for many days in a row. You may be able to get by with about half of that if you live in a sunny, southern clime. Good luck - there are lots of non electric options for other (non-laptop) appliances, so you could cut back on other stuff as well.
Q:How to maintain a battery with a solar panel?
What I would suggest is that you find a panel that is rated for 00 mA, at any voltage higher than 8 volts. A 2 or even 8-volt panel will do, because the voltage will drop to match the battery. Then I would get a diode to put in series with the panel to prevent the battery from discharging through the panel at night. That's called a blocking diode. At such low currents, a charge controller is not worth it. There is not enough power to overheat the battery, which is principally what a charge controller protects against in a larger system. Be aware that you could also simply plug a trickle charger for the battery into the wall outlet, at a cost of less than a penny a day in electricity.
Q:Where are solar panels used?
Solar panels can be used anywhere in the world. The only requirement is that there is sufficient sunlight to power the solar panels and in many developing countries, solar energy is used to heat water.
Q:Is this a good kit for building a solar panel?
I lower right corner is home built solar panels
Q:Solar panel battery help?
I and they have deep cycle batteries exclusively made for solar panels. but in theory you should get more than one because it only takes around 4-5 volts to charge the battery and you do not want to have it that high even with a charge controller which i would also recommend getting which is like $50 on OKorder but a charge controller is used so you do not overcharge the batteries and fry them or undercharge the batteries and weaken its life it gets it just perfect. it lets the current go in and when it is charged fully nothing goes in an nothing comes out.... for a inverter the one i was going to get was $70 500 watt inverter but changes it from dc to ac...hope i helped
Q:anybody got any info on solar panels for energy savings?
Good in adress bar for all information.Thanks
Q:Best and Affordable Solar panel for home?
Q:Amount of solar panels needed to run a/c and pool pump?
Solar panels are not going to be able to run a pool pump 24/7. They will only produce their rated electricity for 4 to 8 hours a day. For the balance you will need a grid connection or a battery backup. Running the AC would require different power levels depending upon humidity, outside temperature levels, solar gain for the house, and insulation levels. An underground house in Maine will be much easier to AC than a Glass house in Arizona. First find the power requirements. If you had the existing equipment they will have a label with the power requirements or the minimum breaker required if nothing else. For example the pool pump may require a 0 amp 240 breaker while the AC may require a 30 amp 240 breaker. That would be 2400 watts for the pump and (30 x 240) 7200 watts for the AC or a total of 9.6kW each hour of operation. (max) You will next need to find the rated capacity of the solar panels. If each panel were rated at 300 watts then you would need 32 panels for the daytime use and perhaps more to fill in a battery backup. All the numbers are very rough estimates.

1. Manufacturer Overview

Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range