• 10w-20w Roof Solar Panels for Sale from China Manufacturer System 1
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10w-20w Roof Solar Panels for Sale from China Manufacturer

10w-20w Roof Solar Panels for Sale from China Manufacturer

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
2500 watt
Supply Capability:
10000000 watt/month

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Specification

Material:
Polycrystalline Silicon
Max. Power(W):
20
Number of Cells(pieces):
36
Solar Module Summarize

Solar Module is the core part of solar PV power systems, also is the highest value part of it. The function of Solar Module is to convert the sun's radiation to electrical energy, or transfer it to battery and store in it, or to drive the load running.
The Product has been widely used in space and ground, it mainly used for power generation systems, charging systems, road lighting and traffic signs areas. It could offer
a wide range of power and voltage, and with high conversion efficiency, and long service life.

Technical Parameter:

Model Type

Good   Quality 185W Solar Panel

Peak Power-Pmax(W)

185W

Open Circuit Voltage-Voc(V)

44.2

Maximum Power Voltage-Vmp(V)

36

Short Circuit Current-Isc(A)

5.4

Maximum Power  Current-Imp(A) 

5

Maximum System Voltage

1000V DC

Maximum Series Fuse Rating

10A

Power Tolerance

 -1~+3%

Temperature Coefficients of Pmax

 -0.45%/

Temperature Coefficients of Voc

 -0.348%/

Temperature Coefficients of Isc

0.031%/

Nominal Operating Cell Temperature

44.5±2

Standard Testing Condition(STC)

Irradiance:1000W/m²;Temperature:25;AM=1.5

Qualification Test Parameters


Operating Temperature

 -40~+85

Storage Temperature

 -40~+85

Pressure Bearing

≥5400Pascal/m²

Wind Bearing

≥5400Pascal/m²

Mechanical Characteristics


Cell Size

Mono 125*125mm±0.5

No.of Cells

72pcs(6*12)

Dimension

1580*808*40mm

Weight

15.5Kg

Glass

3.2mm High Transmission,Low Iron

Frame

Anodized Aluminum Alloy

Junction Box

IP65Rated

Internal Diodes

3 Bypass Diodes

Cable

1*4.0mm² Length 900mm

Production Flow : 

10W-20W Solar Panel Purchase from China Manufacturer

Product Show:

10W-20W Solar Panel Purchase from China Manufacturer

10W-20W Solar Panel Purchase from China Manufacturer

10W-20W Solar Panel Purchase from China Manufacturer

Warranty

Good Quality 185W Solar Panel Manufacture from China

For c-Si panel: 25years output warranty for no less than 80% of performance, 10 years output warranty for no less than  90% of performance. Free from material and workmanship defects within 5 years.

For a-Si panel: 20 years output warranty for no less than 80% of performance, 10 years output warranty for no less than 90% of performance. Free from material and workmanship defects within 2 years.

Q: discription how does solar panels save energy
cool beans got it right. There is Solar electric which converts sunlight to electricity or Solar thermal that heats water or a transfer fluid. they both save energy in a big way. Solar electric or photovoltaic (PV) saves by off setting your electric bill directly. solar thermal saves by cutting the cost to heat your water and if properly sized can actually heat your entire house. This is done in a couple of ways but I won't go into that here.
Q: Do solar panels work during a power outage?
No, solar panels do not work during a power outage unless they are connected to a battery storage system.
Q: Can solar panels be installed on a garage or carport?
Yes, solar panels can be installed on a garage or carport. In fact, these structures often provide ideal locations for solar panel installations, as they typically have sufficient space and exposure to sunlight. Adding solar panels to a garage or carport can help generate clean energy, reduce electricity bills, and provide shade or shelter for vehicles or outdoor activities.
Q: If you need 9400 watts, 75 amps@ 240V, how many solar PV panels do you need?
75 amps @ 240VDC is 8,000 watts.
Q: Can solar panels be used for powering a telecommunications tower?
Yes, solar panels can be used to power a telecommunications tower. Solar energy is a renewable and sustainable source of power that can efficiently generate electricity to meet the energy demands of a telecommunications tower. By harnessing the sun's energy through solar panels, the tower can operate off-grid and reduce its reliance on traditional power sources, making it more environmentally friendly and cost-effective in the long run.
Q: Can solar panels be used to power outdoor lighting?
Yes, solar panels can be used to power outdoor lighting. Solar-powered outdoor lighting systems typically consist of solar panels that collect and convert sunlight into electricity, which is then stored in batteries. This stored energy is used to power the outdoor lighting fixtures at night or in low-light conditions. This sustainable and cost-effective solution eliminates the need for traditional electrical wiring and reduces energy consumption.
Q: I need a 2v (500-800ma) solar panel that in can fit on a 24inx4in flat surface. Where can i get one this size and with this power?
Hey Jeff, what you're talking about is frequently referred to as a, solar battery maintainer. There are lots of places that make and sell them, I have seen them in many auto parts stores and truck stops along the freeways. Go to google and search for a solar battery maintainer, they come is sizes similar to what you are searching for, but it will be difficult to find one that is not over 4 wide. Lots of them are about the size of the top of a shoe box, maybe 2 X 6, and come with a cigarette lighter cord attached. A 2 volt model at 500 ma, or /2 amp, works out to about 9 watts, assuming the 2 volt nominal voltage panel is actually optimized for 8 volts, as most of them are. These devices are designed to sit on the dash board of your car and keep your battery charged if you leave the car for a long period of time, like at the airport for a week in the winter. They actually work for that, we've used one before. What are you planning on doing with it? Charging a battery or running a device directly? Remember if you hook it straight to a device, and the current requirements of the device are less than the available sun will develope with your panel, the voltage may climb to a level too high for your device. If you're charging a battery, this does not cause a problem. Another option is to build your own. It can be a lot of work for just one panel, I've not done it myself, but there are videos on the subject. That device in real goods is a flexible panel, known in the solar world as, Amorphous. They are still a bit experimental, the ones they made a few years ago did not hold up as well as the solid ones, and they are expensive. You can get a /2 amp maintainer for around $25. Good luck Jeff, and take care, Rudydoo
Q: Can solar panels be used in areas with limited space?
Yes, solar panels can be used in areas with limited space. There are various options available, such as rooftop solar panels, solar canopies, or even solar panels integrated into building materials. These solutions are designed to maximize the utilization of limited space while still harnessing solar energy efficiently.
Q: Can solar panels be installed on a school or university campus?
Yes, solar panels can be installed on a school or university campus. Many educational institutions are recognizing the benefits of solar energy and are choosing to install solar panels on their campuses. This not only helps in reducing carbon emissions and dependence on fossil fuels but also serves as an educational tool for students to learn about renewable energy. Additionally, installing solar panels can lead to cost savings on electricity bills for the institution in the long run.
Q: I have a building company in UK and am interested in becoming a solar panel installation contractor
Every single solar system will have to be put on every roof by people. Of course much of the processes used installation are designed to be as pain free and trouble free (and therefore as inexpensive) as possible but in a typical British street of semi detached houses built in the 930s you could find as many different plumbing and heating systems as there are houses, so you will never be able to remove the human installation element.

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