SM Solar Panels 30W Efficiency Chinese Solar Panels for Sale 5-200W

SM Solar Panels 30W Efficiency Chinese Solar Panels for Sale 5-200W

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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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Solar Module Introduction

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.

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.

Secification

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	158080840mm
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.

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.

FAQ:

（1）What price for each watt?

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

（2）What 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.

（3）Can 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.

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

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

（5）Have 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.

（6）When 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.

（7）Can 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.

（10）Can we visit your factory?

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

Q: I know that if I put solar panels in my home I will get 30% back from the govt. Does that mean if I pay 2K I will get back around a 3K check? Or will my income play a roll where I may not get back as much?: The Tax Lady is almost always right, but I must disagree on the $500 limitation concerning a solar electric system (from the price, it sounds like that's what the original question was about) installed in 20. If there was such a change, there would have been an outcry on the solar installers' forum I visit, just as there was jubilation when the limit on the tax credit was removed a few years ago.

Q: The voltage and power problems of solar panels: From morning to night (with sunshine) solar panel voltage is generally relatively stable, that is basically about 30V; but the output power is always changing, sooner or later, noon; if it is good quality solar energy,

Q: If you were to shine, for example, heat lamps onto the solar panel along with the sun, will the solar panel eventually not work? Or will they produce more light as long as more light is directed onto them.: Solar panels have a upper temperature limit, and it's only a bit more than it would reach in a very bright sunny day near the equator. Start shining heat lamps on it and you will raise it past it's max temperature, and it will die. .

Q: Can solar panels be used to power a greenhouse?: Yes, solar panels can be used to power a greenhouse. Solar panels produce electricity by converting sunlight into energy, which can then be used to power various devices and systems, including heating, cooling, lighting, and ventilation in a greenhouse. This renewable energy source helps reduce reliance on traditional power sources and can provide a sustainable and cost-effective solution for powering a greenhouse.

Q: Okay so.. if light deflect the light of the sun and black absorbs it, then aren't solar panels just absorbing more light, sun and heat into our atmosphere? Wouldn't this lead to an increase in global warming? Shouldn't solar panals be white? No rude answers please.: There are two basic types of solar panels. ) Thermal absorbers 2) Photovoltaics Thermal absorbers are black in order to convert sunlight to thermal (heat) energy. The whole idea is to capture all of the light with a dark surface, convert it to thermal energy and transfer the energy into your home for water heating or space heating. If you make the surface white or reflective, then the surface will absorb only a small fraction of the available light, hence the efficiency will be very low. In other words, the panel will not produce any heat. Photovoltaic panels produce electricity instead of heat energy. Photovoltaic panels are made from thin slices (“waffers”) of silicon with special coatings on the front and back surface. One of these coatings on the front is an antireflection coating to capture the light and channel it toward the silicon. Underneath the antireflection coating the silicon waffer is coated with other chemicals that convert the sunlight to electricity. The combination of these coatings gives the panel a dark color, usually blue or black. Here's the bottom line. If you want thermal heat or electricity from solar panels, the panels have to capture the light. When that light is captured, the surface appears dark because no light (or very little) light is reflected back to our eyes. It is not possible for a surface to be an efficient absorber, capturing all available light, and at the same time appear white or bright color or reflective to our eyes.

Q: Are there solar panel systems that I can plug directly into my house to help reduce my electricity bill? If so, are they very expensive? Any help would be greatly appreciated!: As per the question, the answer is no. Solar panels are available, they are expensive, they can reduce your energy bill, you can get up to 30% of the expense back from your taxes, but they must be installed by a qualified electrician or solar panel installer to work properly.

Q: i would like to hook up a power outlet to a solar panelmy light system is 500watts will run for 8 hours/day between noon to 8PM.So what is the most effective system do I need?: Most efficient manner would probably be to use solatubes, or sun tunnels during lighting hours, then replace the 500 watt lighting system (assuming it's incandescent) with LED's, that should give you about the same light output for around 00 watts or a little less even. Then you need a solar panel that can produce 00 watts for as long as you want (at a 00 watt lighting system) or 200 watts for /2 the time you want, etc, etc. Allow a good 0% or so for inverter inefficiencies, and 0% or so for reserve, so 20 watt's per 00 watts. After you have this, you will want a charging controller, a battery, or battery bank (These should at very least be deep-cycle, or better yet golf-cart batteries with series between 2, and parallel between banks of 2 for the 2-volt portion of the system), with enough amp-hours to support your system, plus a good 0% or so reserve, plus another 0% or so for inverter inefficiencies (remember the over sized solar panel above, this is why), than of course you also need a 2-volt DC to 20-volt AC, 60 Hz system (or 240 volt AC 50 Hz system, depending on your AC system) inverter.

Q: Can solar panels be used for street lighting?: Yes, solar panels can be used for street lighting. Solar panels can generate electricity from sunlight and store it in batteries, which can then power streetlights during the night. This is an eco-friendly and cost-effective solution for street lighting, as it reduces reliance on the electrical grid and helps to conserve energy.

Q: Can solar panels be used for camping or outdoor activities?: Yes, solar panels can be used for camping or outdoor activities. Portable solar panels are designed to be lightweight and easily transportable, making them ideal for powering electronic devices and charging batteries in remote locations. They harness the sun's energy to generate electricity, allowing campers to have a reliable and sustainable power source while enjoying the outdoors.

Q: Are solar panels worth it?? I mean the price you by for them up front is a lot, so you properly need a loan for it. So how does it work? Won't the loan be just as much as you electric bill?Im just really confused about it.: Solar panels are one of today's best investments! With a lifespan of 25 to 30 years minimum, and a payback period of 0 year or less, the economics are a no-brainer. There are often state loan programs giving you low interest or no interest for a length of time. There are also tax credits and rebates that take care of a lot of the up front money. Calculate for yourself what you will pay to your utility over the next 30 years. Then see how the cost of a solar electric system compares. My company has helped scores of homeowners and business owners claim Independence and take control of their energy costs for the next few decades. Contact us to have a site evaluation and payback analysis for your particular situation.

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