40W Mono Solar Panel Made in China for Sale - Solar Panels San Jose
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 watt
- Supply Capability:
- 1000000 watt/month
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Specification
Material:
Monocrystalline Silicon
Max. Power(W):
40
Number of Cells(pieces):
36
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
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 |
- Q: they are pretty expensive. So does it save you money on electricity in the long run? How easy is it to connect solar panels to your house?
- yes. Its pretty simple connection. It does save money on electricity.
- Q: what is a solar panel?
- A solar panel is essentially a battery charger that transforms sunlight into an electrical DC (direct current)charge.
- Q: Can solar panels be used in areas with high humidity?
- Yes, solar panels can be used in areas with high humidity. While high humidity may affect the efficiency of solar panels to some extent, they can still generate electricity. The performance of solar panels in humid environments can be optimized by using materials that are resistant to moisture and by ensuring proper installation and maintenance.
- Q: I have a 20 watt solar panel that I want to set up. I need to connect it to the solar controller but do not know what cable to use. I plan on adding more solar panels down the line. What would be the best cable to use?
- How long is the run? 2 gauge is a good choice for runs up to 25 feet at 20 watts, if you are much further in your run, move to 0 gauge to reduce resistance of the wire itself in the circuit. Otherwise refer to the prevailing electrical code of your local unit government. This is a must if you plan to maintain insurance. At lower voltage, a little resistance means a lot. 4 gauge might be okay for 20 VAC, but the voltage drop on a low voltage system from resistance of the wire itself is measurable at 20 feet. It is the difference between a light fixture working or not. If you are planning on adding additional panels in the future, you can get terminal buss with screw hold downs at various vendors like Mouser or Digi key. Each panel can be on it's own screw, while the buss is common on the other side of the connection. one for the positive and one for the negative.
- 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.
- A photovoltaic cell will only be 'sensitive' to a band of radiation...and would probably not even 'see' the energy from a heat lamp. So, no, the solar panel would not be 'overworked' if somehow you could put 2 or 3 suns in the sky at once. It would simply ignore, so to speak, the photons that it didn't need. But, the heat from the heat lamp, or the extra photons, would eventually heat up the glass and the plastic the thing is made of, and it would fail prematurely.
- Q: Can solar panels be used to power a military vehicle?
- Yes, solar panels can be used to power a military vehicle. Advances in technology have allowed for the development of lightweight and flexible solar panels that can be integrated into the structure of military vehicles. These solar panels can capture sunlight and convert it into electrical energy to power various systems and reduce reliance on traditional fuel sources. Implementing solar panels can enhance the sustainability and operational efficiency of military vehicles in certain scenarios.
- Q: So lets say that Everyday I use ,280 kWh. How many 250 watt solar panels would I buy so that I don't need to buy electricity anymore. Sorry if this sounds stupid, I am doing research on why american homes should become more cost efficient.
- Everyday I use ,280 kWh 280 kW-hour / 24 hours = 470 kW WOW, that is a very high power level, most homes use an average of .2 kW. My guess is that you mean you use 280 kW-hour in a year, which comes to an average power of .3 kW, typical. Assuming you get, worse case, 6 hours of sun per day, for the first case, 470 kW, each solar panel generates the equivalent of 250 x6/24 = 60 watts, so you would need 470k/60 = 8000 panels For the second case, .3 kw or 300 watts, divided by 60 that is about 20 panels. Depending on where you live, you could need as much as twice that number. Plus you need charge controller, lots of expensive batteries, and an inverter. The big problem is periods of no sun. If you demand continuous power, and you have a period of, say, 24 hours with no sun because of storms, etc, then the number of batteries increases to the hundreds.
- Q: Can solar panels be used in areas with high levels of chemical pollutants?
- Yes, solar panels can be used in areas with high levels of chemical pollutants. However, frequent maintenance and cleaning may be required to prevent the accumulation of pollutants on the panels, which could reduce their efficiency over time. Additionally, the presence of chemical pollutants in the air may have a negative impact on the overall performance and lifespan of the solar panels. Therefore, it is important to assess the specific conditions and potential risks before installing solar panels in such areas.
- Q: If my school uses 88240kWh of electricity per month and I have 000 50W solar panels running for 6 hours a day, does it mean it will take 88240kWh / {{[(50W x 3600s)*000]/000}kWh x 6} number of hours to generate that much electricity (88240kWh)?
- your first question: Does a 50W solar panel generate 540kWh? 540 kW-hr / 50W = 3600 hours it would take that long for the panel to generate that amount of energy. your second question is confused, as you both stipulate the number of hours at 6 hours per day, and you try to solve for the number of hours. 000 x 50w = 50 kW 50 kW x 6 hr/day x 30 day/mo = 27000 kW-hr/mo = 27 MW-hr/mo that is the amount of energy generated. That is nowhere close to 88240 kWh or 88 MW-hr. I would take 7 times more solar panels to generate that much energy. .
- Q: Polycrystalline solar panels are good or single crystal solar energy is good
- . Since monocrystalline silicon is typically coated with tempered glass and waterproof resin, it is rugged and durable for up to 15 years and up to 25 years.
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40W Mono Solar Panel Made in China for Sale - Solar Panels San Jose
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 watt
- Supply Capability:
- 1000000 watt/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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