40W Mono Solar Panel Made in China for Sale

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
1000 watt
Supply Capability:
1000000 watt/month

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Item specifice:

Material: Monocrystalline Silicon Max. Power(W): 40 Number of Cells(pieces): 36

Product Description:

Product Description

Product Description

Solar module/panel with high efficiency solar cells
Strong, lightweight aluminum frame design with reinforced sealing and load hold to prevent freezing and warping, and stand against high wind.
Under Standard Test Conditions(STC): Irradiance of 1000W/m2, Am1.5 and 25º C cell temperature.
Mechanical Characteristics
Dimensions: 670mm(L) x 450mm(W) x 30mm(H)
Weight: 4.5kg
Solar Cells: Polycrystalline solar cells, 36 cells
Construction: Front: High-transmission 3.2mm tempered glass; Encapsulate: EVA; Back: TPT
Frame: Clear anodized aluminum alloy Color: Silver
40W Mono Solar Panel Made in China for Sale
Product features:
1. The modules use high-quality imported polycrystalline or monocrystalline solar cells;
Enclosed by high-rigidity tempered glass, with excellent light transmittance and output performance;

2. Surface treated with reflection-reducing process, increasing the light absorption.
Back sealed with anti-aging EVA, resistant from moisture and corrosion.

3. The efficiency of our monocrystalline solar cell is over 17%, and polycrystalline panel is over 16%. We stipulate, the allowance of each panel's rated power has to be positive. Each panel is strictly tested before leaving the factory.

4. Our solar panel is designed with a lifetime of 25 years, and guaranteed that the power decline less than 10% within 10 years, and 20% within 20 years.

 Performance
 Rated Power[Pmax] 40W
 Power Tolerance ± 5%
 Nominal Voltage 17.21V
 Design Life 25 years
 Electrical Characteristics
 Maximum Power            [Pmax] 40W± 5%
 Maximum Power Voltage [Vmp] 17.21V± 3%
 Maximum Power Current [Imp] 2.33A± 3%
 Short-Circuit Current       [Isc] 2.57A± 3%
 Open-Circuit Voltage       [Voc] 21.06V± 3%
 Current Temperature Coefficient 0.08%/º C
 Voltage Temperature Coefficient - 0.32%/º C
 Power Temperature Coefficient -0.38%/º C

 


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Q:How to connect 2 power supplies together? (Solar panels)?
Leave the two positive terminals connected together.Disconnect the negative leads from each other. Get two amp diodes from radio shack. Connect each diode in series with each negative lead. there is a band on one end of the diode. Connect each diode so that the end with the band is attached to the negative side of each solar panel. Tie the other ends of the diodes together. This will become the new negative end of your solar panel supply. With the sun shining on the panels , you will now measure the voltage from the plus side of the solar panels to the new negative junction. Connect your load leds in place of the voltmeter and enjoy. Without the diodes , each solar cell thinks the other solar cell is the load. In effect each solar panel is shorting out the other. Some solar panels that you buy already have a diode in their junction box connected for that purpose. You need the diodes to provide the necessary isolation between the two panels, then they can both act in parallel to provide current to the load.
Q:Whats the annual energy output of the average solar panel.?
The output of a solar panel would depend on your location and panel size. Most solar panels are rated using 000 Watts per square metre from the sun. This is only possible at the equator. Some supplier have online estimators for output depending on your location. Solar panels rate up to about 250 Watts per panel. I have an online calculator to work out the costs and benefits of solar. You can compare the costs of solar setup and 25 years of electricity versus buying from the grid.
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:environmental benefit of solar panels?
I'm okorder.com/ I hope this gives you some insight and at least a start. Enjoy.
Q:solar panels for my home.?
Either you, or someone else, asked this same question yesterday, and the answers given were that it is not possible for us to answer it. The costs depend on where your home is located, what prevailing local labor rates are, how difficult it is to get the equipment to the site, etc, etc. I think one of the answers was that for a 3 bedroom, 2 bath house the cost for all the necessary equipment listed would be in the neighborhood of 20 to 30 THOUSAND DOLLARS. I think that was an underestimate, and that it could be 40 to 50 THOUSAND!!!!! The answerer also pointed out that due to the exorbitantly high costs of the technical equipment that at this time the equipment will wear out BEFORE IT EVER CAN PAY FOR ITSELF IN SAVINGS for on the grid electricity. I agree with that. You need to discuss your wants with 3 or 4, even 5 or 6 LOCAL ELECTRICAL CONTRACTORS to get a reasonably accurate estimate of the costs!!!!!!
Q:What is the most efficient solar panel?
Of okorder.com/... , and shop the web for the best panels for yourself. p.s. I'd avoid amorphous silicon panels. They may be cheap, but they'll go bad or seriously degrade in just a few years. p.p.s. I'd also avoid internet guides that claim you can make your own panels very cheaply, if you'll just pay them $$ for the information. Those guides don't live up to their advertising.
Q:Anyone have or know someone who has solar panels installed in their home? Is it worth getting?
Solar electricity is electricity, it is just coming from a clean source rather than coal or oil burning generators. The solar panels make DC power, and the inverter converts it to AC and syncs it up with the electricity you buy from the electric company, it all goes into the same pool, there is no difference between them. gr8sk8rgold - Yes, you are right, installing a large solar system on your house can cost as much as a luxury car. What's the return on investment on that car? How has that car improved the environment? People never ask what the ROI is on anything they buy for their house, except for the solar system. Not sure why. However, the return varies greatly depending on where you live. In some European countries, feed-in-tariffs made the return almost immediate. Ontario, Canada just launched a program that can make a solar system earn you money. In the USA, the federal gov't will give you a 30% tax credit on the installed cost, and some states have rebates and incentives that can pay for a large percentage of the system. If you are building a new house and roll the cost into the mortgage, it'll barely change the monthly payments. You should absolutely first invest in conservation. It is much cheaper to save electricity than to make it. For every $ you spend on conservation, that's about $4 less to spend on solar.
Q:Can I made my own solar panel?
no, not really, they require exotic chemicals and processes. The online outfits that promise to help you build your own are mostly scams. The one I looked at (other answer) seems to just be an assembly guide to put together solar cells into panels. That is fine, but you still have to buy the solar cells, the expensive part. The assembly is just putting them in series/parallel to produce higher voltages and currents. .
Q:solar panel question?
Thin film panels are typically 5-7% efficient. Crystalline panels are typically 0-4% efficient. Both types of panels will degrade overtime, so the efficiencies above are only for new panels.
Q:I have 700watts ups and 2V,65amp battary..i want to add solar panel to just only charge my 2v,65amp batt.?
What you are stating is that the battery you have will operate the UPS for about 2 hours before it is drained past the point of no return (technically 2.82 hours, but that would be a dead battery - most well-designed UPS systems cut off when the battery gets below about a 30% charge so that battery is not damaged. Lead-Acid batteries have about a 0%/month self-discharge rate if there is no load connected. The very best systems are as low as 3%, the worst are over 20% - and all at a 'normal' temperature. So, you will need a maintenance charger of about ten (0) watts or so - amp will be more than enough. And about any solar panel will handle that much with the proper charging connection.

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