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

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

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Item specifice:

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

Product Description:

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.

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Q:Does making solar panels cause more pollution than they take away when used?
Absolutely not. This is a myth. The energy payback of a solar panel far outweighs its cost. With current technology (which is vastly improving every year), the payback begins in about -4 years depending on climate. This means that after -4 years, the solar panel has generated the same amount of energy that was used in its entire creation up until the point that it was installed. The panel will then continue to generate power for another 20-25 years at 90-98% capacity if properly maintained. The U.S. Department of Energy has conducted extensive studies on the subject and the results (which i'm quoting) can be viewed on their PV Faq page...
Q:Composition and function of solar panels
In addition to the quality of EVA itself, the components of the manufacturers of laminated technology is also very large, such as EVA glue degree is not up to standard, EVA and tempered glass, backplane bonding strength is not enough, will cause EVA early aging, affecting components
Q:Solar panels don't work when it's too hot/sunny?
i couldn't see any evidence of that on the internet, but i only searched for a little while for ya. all i can say is in Australia 40 - 50 degrees celcious is about our hottest, and i have never heard of it being a problem. im sure that being the sunburnt country we would know as general knowledge if the solar systems didn't go well if it was too hot.
Q:How big of a solar panel system would I need to get ?
Create okorder.com/
Q:How efficient are solar panels?
Solar panels are efficient but in case when solar energy is not enough or it’s a cloudy day, then sufficient energy can’t be generated.
Q:What is the principle and structure of solar panels?
inverter: solar direct output are generally 12VDC, 24VDC, 48VDC. In order to provide power to 220VAC appliances, it is necessary to convert the DC power from the solar power system into AC power, so it is necessary to use DC-AC inverter.
Q:What to do with a solar panel?
Solar cells convert the energy of the sun into electricity. By using items commonly found in the home or your local hardware store, you can make a solar panel to demonstrate this photoelectric effect. You can also save energy by converting some of your traditional electrical supply over to solar power. Use sheet metal shears to cut the copper flashing in a square or rectangle to fit the size of the electric burner. Be sure to use a piece of copper flashing that is thoroughly cleaned. You may use sandpaper to thoroughly remove any sign of corrosion before proceeding. Place the copper flashing on the electric burner and turn the burner on. You will need to cook the flashing for as long as 30 minutes or more to develop a thick layer of black cupric oxide.
Q:How to prevent shorting out solar panel?
Just cover the panel and cut the wire the voltage will be so low it would be like shorting out a battery
Q:question about GE solar panels?
I wasn't aware that GE made solar panels. Perhaps they sold their name to someone, as they've done for all of their consumer electronics. But a 90-watt panel is $66.20 from the place below.
Q:Solar Panel Help, Trying to go green.?
Ideally, you should not be trying to run individual appliances off of a solar panel. What you should be doing is selling the power harvested from these panels back to the power company as a savings from your power bill. Here in southern California I have heard of people actually receiving monthly checks from the power companies.

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