• Polycrystalline  Solar Panels 120W With High Efficiency System 1
  • Polycrystalline  Solar Panels 120W With High Efficiency System 2
Polycrystalline  Solar Panels 120W With High Efficiency

Polycrystalline Solar Panels 120W With High Efficiency

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
1000 watt
Supply Capability:
1000000 watt/month

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Item specifice

Material:
Polycrystalline Silicon
Max. Power(W):
120
Number of Cells(pieces):
30

Introduction of  Poly solar panels CNBM

Polycrystalline  Solar Panels 120W With High Efficiency

CNBM Solar photovoltaic (PV) Panel is designed for large electrical power requirements. It is the optimal choice for both on-grid and off-grid power systems. CNBM Solar panel offers high performance of power per square foot of solar array. Monocrystalline silicon(c-Si): often made using the Czochralski process. Single-crystal wafer cells tend to be expensive, and because they are cut from cylindrical ingots, do not completely cover a square solar cell module without a substantial waste of refined silicon. Hence most c-Si panels have uncovered gaps at the four corners of the cells.

 Polycrystalline  Solar Panels 120W With High Efficiency

Feature

1.Solar Cell : High efficiency crystalline solar cell. Even if under the weak light, the solar module can produce maximum power output.

2.Tempered glass (toughened glass): Anti-reflecting coating and high transmission rate glass increase the power output and mechanical strength of solar module.

3.EVA and TPT: Using high quality EVA and TPT to prevent destroying and water.

4.Long lifetime: ≥25 years; Less power decrease.

5.Resisting moisture and etching effectively, not effected by geology.

6.The certificate issued by international authority: UL, TUV, IEC, VDE, CE.

 

Main Solar Panel Specification

Characteristics of  Poly solar panels CNBM

Max Power Voltage Vmp(V) 

30.3

30.8

31.1

31.4

31.85

Max Power Current Imp(A)

7.60

7.64

7.73

7.81

7.85

Open Circuit Voltage Voc(V)

36.1

36.6

37

37.3

37.68

Short Circuit Current Isc(A)

8.50

8.55

8.65

8.75

8.85

Max Power Pm(W)

230W

235W

240W

245W

250W

 

Temperature Coefficient of Cells Poly solar panels CNBM

NOCT 

45 ± 2

Temperature Coeffucients of Isc (%/)

 0.0492

Temperature Coeffucients of Voc (%/)

-0.3374

Temperature Coeffucients of Voc (%/)

-0.4677

 

Mechanical Data of Poly solar panels CNBM

Dimension 

1638 ×  982 × 40 mm

Weight

19.5 kg

No. of Cells and Connections

60 (6 ×10)

Tolerance

0 ~ + 5 W

Cell

Monocrystalline Cell 156 × 156 mm

Packing

624 Pcs/40ft(H) Container

 

Limits of Poly solar panels CNBM

Operating Temperature

-40 to +85

Storage Temperature

-40 to +85

Max System Voltage 

1000VDC(IEC) / 600VDC(UL)

 

Guarantees of Poly solar panels CNBM

Products Guarantee

12 yrs free from defects in materials and workmanship

Performance Guarantee

No less than 90% within 10yrs and no less than 80% within 25yrs

Certificates 

TUV(IEC61215&IEC61730),VDE(IEC61215&IEC61730),UL,CE

 

Packaging Information

Package:26pcs/box

Quantity:1 box/pallent

Loading Capacity:952pcs/40ft

Q:Can solar panels be installed in urban areas?
Yes, solar panels can be installed in urban areas. In fact, urban areas provide great opportunities for solar panel installations due to the abundance of rooftop space and potential to generate clean energy in densely populated areas.
Q:Can solar panels be installed on a hospital or healthcare facility?
Yes, solar panels can be installed on a hospital or healthcare facility. In fact, many hospitals and healthcare facilities are increasingly adopting solar energy systems as a way to reduce their carbon footprint, lower energy costs, and increase energy independence. Solar panels can be installed on rooftops, parking lots, or even as ground-mounted systems, providing clean and renewable energy to power the facility's operations.
Q:I have two solar panels that were going to be trashed at work. I want to use them to charge batteries on my RV but i noticed they put out around 20 volts in direct sunlight. So i am wondering: -isn't this way too much voltage for a 2 volt system? -do a need some sort of a regulator connected to keep them from overcharging?
You okorder /
Q:Just curious.
Since you said does instead of do I think it would be fruitless trying to explain it...
Q:how to market solar energy products?
You'd better build some sample project. For e.g, if you mean solar water heater, install one pc on your roof, and make it generate hot water, and tell people about it.
Q:I got a really great deal on 2 houses because they were fixer-uppers. I'm living in one and the other I'm renting out. However, the previous owner did everything himself in 950 95, so needless to say, things are not to todays standards. Both houses need rewiring (there are no ceiling lights, few outlets, and mine has two old fuse boxes and the other has a breaker box but it pops the breaker a lot). The only reason they are still functional is because both houses use natural gas for water and heat, so otherwise, they electrical work is getting us by, but who knows for how long. I thought that maybe instead of redoing the electric, that I could just add solar panels to compensate for the small electric boxes. Also, since I would have to hire electricians to do all the work, which would be more cost effective (not including the decrease in utilities since I don't pay the utilities in the rental anyways)?
A solar panel does not replace the wiring in your house. All it does is supply power to the house, the same way a line in from the street does. After the power gets to the house, regardless of how it got to your house, it goes through exactly the same wiring to get to outlets and lights. Your problem is not that the power coming in from the street is insufficient; the power company can supply all you'd ever need. The problem is that your houses are not wired to receive or use more power. You need to upgrade the service panel so it can bring more power into the house, and upgrade the wiring inside the walls so you have the number of outlets and lights required by today's codes and which most of us need for all the things we plug in these days. Solar panels, while they are cheaper than ever, are not a low cost thing to install. It will take years to recover their cost, and if the rules are the same where you are as they are here, you can't use the cost of installing them as a write-off against the cost of the house until you sell it. They are a capital expense, not a maintenance and repair deduction which you can use each year against the income you receive from the rental. Doing a conventional rewiring is your best bet.
Q:Can solar panels be used to power a museum?
Yes, solar panels can be used to power a museum. Solar panels convert sunlight into electricity, which can then be used to power various electrical systems and devices within the museum. The installation of solar panels on the museum's roof or surrounding areas can generate renewable energy, reducing the reliance on traditional energy sources and lowering carbon emissions. Additionally, solar power systems can provide a sustainable and cost-effective solution for powering a museum's lighting, climate control systems, and other electrical needs.
Q:I want to build a standalone wifi repeater -- powered by the sun. The problem is how much solar power and how big of a battery?net draw 4.5v @ 0.66A with loadnet draw 4.5v @ 0.60A no loadI'm assuming the best choice would be a 6v battery with a a couple diodes in series to induce ~.5v drop. Then, I need something to charge it -- I found 2v 6w solar chargers in the automotive section of Sears and 6v 2w solar chargers in the marine section of Dick's Sporting Goods.How many solar panels and what capacity batteries should I use? Is this the best method or should I use a voltage regulator and go with 2v batteries?I need this to be as cheap and simple as possible...
You won't get very far with THAT lash-up. First of all.. WHY would you want to use diodes to drop the voltage.. they DRAW CURRENT and that is something you don't have to spare. That draw of (660 ma) comes out to just under 3 watts. You DO KNOW that you can get that 4.5 Volts by driving a NAIL into the THIRD CELL in a 6 Volt wet cell battery... right? and for what you are doing, you have more current available with a 6 volt battery than a 2 volt battery. Anyway, you could use two 6 Volt batteries and tap them at the 4.5 volt point then tie them in parallel, but you could still use the 6 volt solar panel to charge them. Trying to use an inverter is just an exercise in futility.. With TWO of the LARGEST DEEP CYCLE BATTERIES you can buy at AutoZone running in Parallel and being charged by solar panels.. if you hook a 75 watt inverter to them, they will go flat in about 4 hours of use during the night. This is not rocket science. Back when cars were changing over from 6 volts to 2 volts, I powered up more than one 6 volt car radio off a 2 volt battery... when you grow up as poor as I did.. you get inventive. I later used the same trick on the 24 volt electrical systems the Jeeps were using, to power up clandestine repeaters in places where no repeaters should have been. About 25 years ago I was living in the Denver area and built up a 0 watt 2 meter repeater on a split channel and took it up to Mt. Evans during the summer and hid it in a pile of rocks. I used tone control, so we were the only ones using it and, as I said, It was a split channel.. so it wasn't on a regular repeater channel. That thing was still running when I moved from the Denver area about 3 years later and for all I know, It's still up there on Mt. Evans (find the Brittlecone Pines and look towards that small peak about a mile to the west)
Q:For those solar panels that you install on your rooftops, do they generate electricity when it's cloudy? And if yes, how much electricity does it generate compared to sunny days? For example...like only 25% electricity generated compared to sunny days?
No, silicon photovoltaics reacts to a very specific frequency of infrared light which matches the bandgap energy of it's outer electron shell. This frequency is reflected by clouds. However, thermal solar collectors such as evacuated tube collectors can function under cloudy skies albeit at a lower rate and there is at least one hybrid photovoltaic and thermal panel designed to take advantage of this.
Q:What is the payback period for solar panels?
The payback period for solar panels can vary depending on factors such as the initial cost of installation, location, energy usage, and available incentives. However, on average, solar panels tend to have a payback period of about 5 to 10 years.

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