255W Direct Factory Sale Price 240-260Watt Solar Panels

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China main port
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TT OR LC
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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:

255W Direct Factory Sale Price 240-260Watt Solar Panels

255W Direct Factory Sale Price 240-260Watt Solar Panels

255W Direct Factory Sale Price 240-260Watt 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:solar panels and how they work
How Solar Cells Work by way of Scott Aldous Inside This Article a million. Introduction to How Solar Cells Work two. Photovoltaic Cells: Converting Photons to Electrons three. How Silicon Makes a Solar Cell four. Anatomy of a Solar Cell five. Energy Loss in a Solar Cell 6. Solar-powering a House 7. Solving Solar-energy Issues eight. Solar-energy Pros and Cons nine. Lots More Information 0. See all Physical Science articles You've most likely visible calculators that experience sun cells -- calculators that certainly not want batteries, and in a few instances do not also have an off button. As lengthy as you have got sufficient mild, they look to paintings eternally. You could have visible better sun panels -- on emergency street indicators or name containers, on buoys, even in parking plenty to energy lighting fixtures. Although those better panels are not as ordinary as sun powered calculators, they are in the market, and no longer that rough to identify if you recognize in which to appear. There are sun mobile arrays on satellites, in which they're used to energy the electric strategies. You have most likely additionally been listening to approximately the sun revolution for the final twenty years -- the inspiration that sooner or later we can all use loose electrical power from the solar. This is a seductive promise: On a brilliant, sunny day, the solar shines roughly a million,000 watts of vigour in step with rectangular meter of the planet's floor, and if we might accumulate all of that vigour we might simply energy our houses and places of work free of charge.
Q:What is a solar panel?
Solar panel is a battery of solar cells. Solar cell is a device which uses the sun's rays to produce electricity by the photovoltaic effect. The photovoltaic effect involves the creation of a voltage (or a corresponding electric current) in a material upon exposure to electromagnetic radiation. It utilizes the generation of a voltage when radiant energy falls on the boundary between dissimilar substances (as two different semiconductors).
Q:It's all about Solar Panels?
Solar panels are not environmentally friendly. They are expensive and inefficient. Dangerous chemicals that never break down in the environment are produced in the manufacture of solar panels. Their environmental footprint is larger on a per kilowatt basis, than conventional modes of electricity generation. And, because of their unreliability, they have to be backed up by conventional sources. Well-intentioned, but gullible, people the world over have convinced themselves that solar power is our salvation. Nothing could be further from the truth. As an example, check out Margaret Wente's recent column in the Globe Mail after Ontario's recent decision to go green. Also check out George Monbiot's critique of the UK experiment.
Q:advice what solar panels to purchase?
Are you talking about buying panels, or investing in stock? LDK does not make panels, they make solar grade silicon that goes into panels. I haven't heard bad buzz recently about any brand of panel. Therefore, I would go by price per watt alone. If you type in solar panel price into Google, you're sure to get directed to the major sellers, each of whom will sell many brands of panels. There are a couple other requirements that I would have for a serious system: ) Safety certification such as UL. This will be legally required for a grid-tied system. All panels except the really fly-by-night brands and factory seconds have this. 2) 25-year performance warranty. It's standard now for a manufacturer to guarantee that their panel will still produce 80% of the rated output after 25 years. Older panels may say 20 years. Junk panels will have no such warranty, or something ridiculous like 90 days or year. 3) Crystalline silicon. Monocrystalline or polycrystalline doesn't matter. Every few years, someone claims that they have an amorphous or thin-film technology that's durable. Being conservative, I'm still waiting for such things to be proven. Some crystalline panels have been in service since the 70's, although they are pitifully weak by today's standards. I've heard good things about the Sanyo HIT hybrid panels, but that's only from one person who had them installed.
Q:What makes solar panels Inneficient?
Solar panels produce very little heat or sound compared to electrical energy. In terms of the sunlight striking the panels, solar panels have an extremely poor efficiency because they can't possibly absorb 00% of the light energy. Solar panel efficiency is usually given is terms of converting the light that IS absorbed into electricity. Improvements are happening constantly. Mainly, trying to maximize electrical conductivity.
Q:Is heat a factor in how much energy is gained when using solar panels?
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Q:What direction do solar panels usually point?
Oh wow, please ignore approx 50% of the answers here. We live off-grid and solar is my business. If you are in North America, they should face SOUTH. The comment about them facing the equator is accurate. What has not been said though, is the angle they should be at. For optimal sun exposure, the angle from horizontal for the panel should be equal to your latitude. So if you live in Colorado for example, at approximately 40 degrees latitude, your panel should be at 40 degrees from horizontal.
Q:How do you hook up solar panels to your electricity?
Backwoods Home Magazine had a great step by step section in one of their magazines on solar energy, panels, hook-up, etc. You can go to their website, pull that issue up and order the magazine and I believe they offer it on CD. This way you would have a reference guide at the ready when you tackle this project. Godd Luck!
Q:Is it truE thet solar panels. . ?
Solar okorder.com/
Q:Solar Panel System at Harbor Freight?
I don't have direct experience with the Harbor Freight panels, but have heard that they are agressively rated - i.e., the three 5-watt panels are really 5-watt panels. The 80-watt panel is likely to be a serious panel, rated according to standard test conditions. It will also be more durable, and probably have a warranty of 20 years or more. There's really no comparison. If your goal is to experiment with solar electricity, then get the kit from Harbor Freight (or Northern Tool, or any of a handful of other places). If your goal is to save money, generally you will need a larger scale than 80 watts - several thousand watts being the norm. And the payback time will be measured in years.

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