• Stock Solar Panels - 50w Direct Factory Sale Price 260-300watt Solar Panels System 1
  • Stock Solar Panels - 50w Direct Factory Sale Price 260-300watt Solar Panels System 2
  • Stock Solar Panels - 50w Direct Factory Sale Price 260-300watt Solar Panels System 3
Stock Solar Panels - 50w Direct Factory Sale Price 260-300watt Solar Panels

Stock Solar Panels - 50w Direct Factory Sale Price 260-300watt Solar Panels

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
10000 watt
Supply Capability:
100000 watt/month

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Specification

Material:
Polycrystalline Silicon
Max. Power(W):
300
Number of Cells(pieces):
1

50W Direct Factory Sale Price 260-300Watt Solar Panels

50W Direct Factory Sale Price 260-300Watt Solar Panels

50W Direct Factory Sale Price 260-300Watt Solar Panels

Solar Module Introduction

Solar modules use light energy (photons) from the sun to generate electricity through the photovoltaic effect. The majority of modules use wafer-based crystalline silicon cells or thin-film cells based on cadmium telluride or silicon. The structural (load carrying) member of a module can either be the top layer or the back layer. Cells must also be protected from mechanical damage and moisture. Most solar modules are rigid, but semi-flexible ones are available, based on thin-film cells. These early solar modules were first used in space in 1958.

Electrical connections are made in series to achieve a desired output voltage and/or in parallel to provide a desired current capability. The conducting wires that take the current off the modules may contain silver, copper or other non-magnetic conductive transition metals. The cells must be connected electrically to one another and to the rest of the system. Externally, popular terrestrial usage photovoltaic modules use MC3 (older) or MC4 connectors to facilitate easy weatherproof connections to the rest of the system.

 

Specification

 

Model Type

Peak Power-Pmax(W)

5-200W

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

 

Images
 
Packing & Shipping:

 

We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.

The normal size is packed by 25pcs/ carton / pallet. Paper carton for FCL shipping and wood carton for LCL shipping.

 

Features

1.High reliability with guaranteed -3% to +5% power output tolerance, ensuring return on investment
2.High conversion efficiency based on leading innovative photovoltaic technologies
3.Withstands high wind-pressure and snow load, and extreme temperature variations
4.Attractive appearanceUnique frame design, high mechanical strength, and easy Installation

Warranty:

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.

 

•100% product quality protection

•100% on-time shipment protection

•100% payment protection for your covered amount

FAQ:

1What price for each watt?

It depends on the quantity, delivery date and payment terms.

2What 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.

3Can 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?

Actually we are only manufacturer of solar panels, but we could try to source them for you in China if you need. We could provide you an optimal system design to instruct you how to install.

4Do you have the CE, TUV, UL Certification?

We’ve already passed all the tests, and any certificate is available.

5Have you ever sold your products to companies in my country?

Of course, we have customers in all general PV markets, but I think we should expand our market share along with the market growth.

6When did your company set up?  You are a new company, how can I believe your quality?

We entered into Solar PV industry in 2005, now we have several plants in manufacturing of a-Si and c-Si panels, and our capacity is 220MW per year. Till now we have already passed all the tests by authorized laboratories, e.g. TUV, VDE, UL.

7Can you help us install the module if we cooperate with you?

We haven’t entered into installation sector, but we have the plan in near future.

8) 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.

 (9) Can you do OEM for us?

Yes, we can.

10Can we visit your factory?

Surely, I will arrange the trip basing on your business schedule.

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: For my Product Design Coursework I am designing an environment friendly building according to a clients' specifications. I need to find out the dimensions of 0000 watt solar panels. any help would be much appreciated!
Create okorder /
Q: What about sources for straight forward solar powered products? Excluding toys, garden frogs and outdoorpath lights I have found few useful items for the home. What I have found are solar panels for under $00 each, inverters, rechargeable indoor lights and a few camping/RV products that are interesting. It seems to me that these could help me start to wean the family off the power company. I can't afford to go cold turkey and cover my roof with solar panels and I don't think the HOA would allow me to even if I could. Is anyone using solar on a small scale?
I okorder Hope this helps.
Q: Can solar panels be used to power an air conditioning system?
Yes, solar panels can be used to power an air conditioning system. Solar energy can be converted into electricity, which can then be used to power various appliances including air conditioning units. By harnessing the power of the sun, solar panels can provide a sustainable and cost-effective solution for cooling homes and buildings.
Q: Can solar panels be used for large-scale power generation?
Yes, solar panels can definitely be used for large-scale power generation. As technology has advanced, the efficiency and capacity of solar panels have greatly improved, making them a viable option for generating significant amounts of electricity. In fact, many countries and companies are already utilizing solar farms and large-scale installations to harness the power of the sun and contribute to their energy needs.
Q: Are solar panels suitable for commercial use?
Yes, solar panels are highly suitable for commercial use. They offer numerous benefits such as reducing energy costs, providing a stable and reliable source of electricity, and promoting sustainable practices. Additionally, many governments and organizations offer incentives and tax benefits for businesses that implement solar energy systems. Overall, solar panels are a practical and cost-effective solution for commercial establishments aiming to reduce their environmental footprint and save on energy expenses.
Q: I have heard a lot about solar panels and I want to know how these solar panels works and is it really possible to generate electricity using solar panels. And what is the cost of getting a solar panel installed?
solar panels are a waste, I work for the biggest energy producer on the east coast and we are required by some really dumb laws to have many types of energy sources, fo course the only ones we make money on are coal and nuclear, solar panels we lose a ton of money on because they never make up for the cost it takes to buy them, and technology cannot bring them down because their too expensive even with a gov't subsidy bc of the products to make them. Don't waste your time with them, if you want to save money get a wood furnace
Q: OK so how do these solar panels supplement the AC from the grid? Like do they invert the output of the solar panels and sync two AC sources together? If so how and with what? Or do they convert the AC from the grid to DC and then supplement and then invert it? If so how and with what? Thanks
The okorder /
Q: I am looking at building my own solar panels to at least help cut down the rising energy bill. I know its expensive. I already have the solar cells so no need to worry about listing that. But i am looking at wiring it directly into the house. Is there any parts that you could list for me, that would be great. thanks
You need to talk to your local power utility to see what they require for you to connect your solar power system into the grid.
Q: Is this true in a dc system? What if my battery current is negative?
complex task. browse in google and yahoo. that could help!

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