Solar Panels for Sale on Ebay:A Grade and B Grade 3BB and 4BB High Efficiency 18.7% Solar Cells

Solar Panels for Sale on Ebay:A Grade and B Grade 3BB and 4BB High Efficiency 18.7% Solar Cells

Ref Price:

Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 10000 watt

Supply Capability:: 100000000 watt/month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

You Might Also Like

Solar Panels Tempe Mono Solar Panels CNBM 235W

Mono Solar Panels CNBM 280W-300W for Mars Solar Panels

Best Quality Solar Polycrystalline Panels (270W-290W)

American Made Polycrystalline Solar Panels

Va Solar Panels 240W CNBM China Solar Panels Low Price

300W Mono Solar Panels on A House

Solar Panels 300 Watts from CNBM

Solar Panels Bedford - CNBM Solar Module 250W High Efficiency

Specification

Material:

Polycrystalline Silicon

Max. Power(W):

Number of Cells(pieces):

Size:

156*156

1.Product Description:

Specifications of Poly Solar Cells

Dimension	156mm X 156 mm ±0.5mm
Wafer Thickness	200um ±30um
Front(-)	Four 1.1mm wide bus bars(silver) with distance 39mm, Acid texturized surface with blue silicon nitride AR coating.
Back(+)	2.4mm wide silver/aluminum soldering pads, aluminum back surface field.

Temperature Coefficient of Poly Cells

Voc.Temp .coef.%/K	-0.351%/K
Isc.Temp .coef.%/K	+0.035%/K
Pm.Temp. coef.%/K	-0.47%/K

Electrical Characteristic of Poly Cells

Efficiency code		1720	1740	1760	1780	1820	1840
Efficiency (min)	(%)	17.2	17.4	17.6	17.8	18.2	18.4
Pmax	(W)	4.186	4.234	4.283	4.332	4.429	4.478
Voc	(V)	0.631	0.632	0.634	0.636	0.640	0.642
Isc	(A)	8.446	8.485	8.523	8.573	8.660	8.700
Vmp	(V)	0.525	0.527	0.529	0.531	0.535	0.537
Imp	(A)	7.973	8.035	8.097	8.160	8.280	8.340

2.Advantages of Poly Solar Cells

1). Tire-1 Solar Cells’ Manufacturer Quality Guarantee. With a complete and sophisticated quality government system, our Quality Management have arrived world’s leading place. Customer can receive Tire-1 Cells Maker’s Quality Standard Products.

2). Trusted Warranty. We can supply trusted after-sales service to our customer. If our cells are found not in conformity to the specification of manufacturer, or should the inspected quantity found in shortage, or should the packing found damaged, the buyer has the right to claim to the seller. The claim, if any, should be presented to seller within 30 days after cargo's arrival date to the port, together with related inspection report and photos issued and provided by a reputable independent surveyor such as SGS.

3). World’s Leading Manufacturer Equipment. We imported the newest and leading production equipment from abroad. Advanced equipment can guarantee the stable quality of cells. Auto production line can also save labor cost which will further cut our production cost.

4). Bulk supply: With the production capacity of 500MW, we can produce large quantity every month. This can satisfy most customer requirement.

3.Usage and Applications of Poly Cells

Solar cells are often electrically connected and encapsulated as a module.

Photovoltaic modules often have a sheet of glass on the front (sun up) side, allowing light to pass while protecting the semiconductor wafers from abrasion and impact due to wind-driven debris, rain, hail, etc. Solar cells are also usually connected in series in modules, creating an additive voltage.

Connecting cells in parallel will yield a higher current;our solar cells have passed IEC Certification.

With high quality and stable quality. Our Cells can greatly improve the performance of Solar Modules.

4.Pictures of Product

Solar Cells A Grade and B Grade 3BB and 4BB with High Efficiency 18.7%

5.Packaging & Delivery of Poly Cells

Carton Box Package and Deliver by air. It should be noticed that it should be avoid water, sunshine and moist.

We have organized several common questions for our clients，may help you sincerely：

6.FAQ

1. What’s price per watt?

A: It’s depends on the quantity, delivery date and payment terms of the order. We can talk further about the detail price issue. Our products is high quality with lower price level.

2. Can you tell me the parameter of your solar cells?

We have different series of cells with different power output, both from c-si to a-si. Please take our specification sheet for your reference.

3. 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.

4. Can you do OEM for us?

Yes, we can.

5. How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The perfect time of receiving is related to the state and position of customers. Commonly 7 to 10 working days can be served.

Q: I am confused. I am planning to build a simple 2Watt solar system to power some lights in my house. . I wonder if it is possible to power up a 2Watt bulb using 2Watt solar power?2. Normally, when we are reading the power rating of a bulb, we will read the wattage, so what about the voltage and current rating?3. If the current is insufficient, will the bulb light up?I am having a solar panel that can output 2W power but I am not sure about the output voltage, how can I find out about the current? I am getting really confused.: Unlikely - at least not a full brightness. You have to match voltages. If your panel is 2v at amp, it won't run a 20v bulb that runs at /0 amp. You're also going to lose power in the wiring and other components that means the 2w panel won't really deliver its full rating. And I'm also guessing that the 2w of the panel is only under full, bright sunlight, so any lessening of the light; clouds, haze, fog, dust, will lessen the power available.

Q: I am curious about how much of the energy that a solar panel of a given size and capacity will produce in it's lifetime, and what fraction of that energy was required to produce it in the first place?: The attached link is to an article from the 200 Home Power magazine. In that article the energy payback was found to be between 2 and 4 years. Newer panels are more efficient primarily because the silicon wafers used today are thinner. The silicon cell embodies most of the energy required to make a solar panel. Today most solar panels will produce the amount of energy required to manufacture them in between about 9 months and 2 years depending upon the specific technology used to make it. Solar panels are expected to produce energy for between 30 and 50 years. Therefore it takes around 5% of their total energy production to produce them. Note that these figures depend upon where the panels are installed. Panels in very sunny areas may generate more than 3 times the energy of panels in a cloudier area. Edit - The energy payback meta-study that carbonates references below mention one particular study Alsema (2000), which the authors used as a baseline to come up with their 4 year payback figure. These studies DO NOT assume ideal conditions. The Alsema study assumes an annual an irradiation of 700 kWh/m2/yr. That is the United States average irradiation and does take into account cloudy weather and the like. Under idea conditions the amount of energy collected can be almost twice as much. Albuquerque New Mexico is an example. The figures I mentioned above are recent values reported by several different panel manufacturers with whom I discussed the issue at the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion held this May. The very long payback times that carbonate highlights are almost certainly wrong. The study he references concludes that paybacks range between 2 and 8 years with 4 years being the most likely. In my opinion payback times are actually a fair bit shorter based on conversations with the manufacturers.

Q: I have several 6v 4.5a sealed lead acid batteries. I would like to hook one of them up to a solar panel and have it stay charged from the solar panel all the time, but not overcharged. Is there a simple way to do this with an IC or something? I am only a beginner with circuits so I want it to be something very easy to make. Basically, I want it to stay charged all the time so it's available if I need it for a power out or something.Thanks.: Yes, you can purchase a solar photovoltaic array to keep your batteries charged. You will need a Photovoltaic Cell Panel that produces 27 + watts (6volts x 4.5 amps = 27 watts) at 6 volts of electricity, a Charge Controller that allows only 4.5 amps of power through to the battery and will reduce the amps as the battery nears full charge and shut off the Panel when the battery is fully charged, and a 6v. Battery. Figure you will need a photovoltaic panel capable of producing a minimum of 27 watts if you are going to charge a completely dead 6 v. battery in one day. (with a clear sky). The way the system works is the sunlight strikes the cells on the panel and releases the excess electrons in the cells, they travel along central wires to your battery and charge the battery. When the sun sets, the procedure is reversed and the electrons flow backwards from the battery, into the photovoltaic cells. That is where the Charge Controller is needed. It acts a one way gate and lets the electrons go into the battery, but won't let them go backwards to the Panel. Just set your panel in the sun at the optimum angle for the season and your latitude on earth, connect the charge controller and then the battery, and it will keep your battery charged. Don't waste your money on the small wattage solar photovoltaic systems that claim to keep your battery charged. They simply can't do it unless your battery is in like new condition and is fully charged when they are hooked up. If you battery is a few months old, the small wattage photovoltaic systems can't keep up with the loss of power from sulfation inside the battery.

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 in areas with high pollution levels?: Yes, solar panels can be used in areas with high pollution levels. While pollution levels may slightly reduce the efficiency of solar panels due to decreased sunlight reaching the panels, they can still generate electricity. Additionally, solar panels can help mitigate pollution by providing clean and renewable energy, reducing reliance on fossil fuels and contributing to a cleaner environment.

Q: Can solar panels be used to power a farm?: Yes, solar panels can be used to power a farm. By harnessing the sun's energy, solar panels can generate electricity that can be used to power various farm operations such as pumps, irrigation systems, lighting, and even machinery. This renewable energy source offers a sustainable and cost-effective solution for farmers looking to reduce their reliance on traditional power sources and reduce their carbon footprint.

Q: Can solar panels be installed on a factory or industrial facility?: Yes, solar panels can be installed on a factory or industrial facility. In fact, many factories and industrial facilities have started adopting solar energy as a renewable and sustainable source of power. Installing solar panels on such facilities can help reduce their carbon footprint, lower electricity costs, and provide a reliable source of clean energy.

Q: Here's a little idea I though might help everyone out in Iraq a little: How about if the US mass produces solar panels that are small enough to carry (maybe one foot by three feet) that have a regular power outlet on them to the Iraqis? We could send convoys to the people waiting in line to buy gas and give each person one free solar panel. Why?. A lot of people are buying gas to run generators for air conditioning, not to fuel vehicles. 2. It would help reduce the gas lines if people only needed gas for cars instead of their generators too.3. It would help reduce the fighting over the power grid if people didn't need the grid for their own electrical power.My theory is, once every family in Iraq has enough of these panels that they don't even care about the power grid (during the daytime anyway) it would be much easier to fix the power grid. Maybe these solar panels could even connect to and add to the power grid.: In oil rich Iraq it would be counter productive to take such an initiative. There is already a huge shortage of solar panels. If you drive the price up more, which you're plan would do, It would just set back their growth in the U.S. and other developed oil poor places. This would hurt us a lot more than it would help them.

Q: How much energy can solar panels produce?: The amount of energy that solar panels can produce depends on various factors such as the size and efficiency of the panels, the location and climate, and the amount of sunlight available. On average, a typical residential solar panel system can generate between 10 to 20 kilowatt-hours (kWh) of electricity per day. However, larger commercial systems or those installed in regions with abundant sunlight can produce significantly more energy.

Q: Pros and Cons if I get solar panels?: If solar panels were cost effective we would all be buying them and you would see them on the roof of every home. They are not. It is cheaper to buy electricity from the electric utility company.

Send your message to us

*Email

*TEL

*Quantity

*Unit