Solar Panels Wholesale Mono Panel SWE-M660(BK) Series 260W
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SWE-M660(BK) Series240W
futures:
High module efficiency up to 16.00%
• Positive power tolerance 0/+5W
• Robust frame to up to 5400Pa load
• Anti-PID technology
• Hot-Spot protect
• Anti-Reflective glass
Data sheet
| Electrical Characteristics @ STC | SWE-M660-240（BK） | SWE-M660-245（BK) | SWE-M660-250(BK) | SWE-M660-255(BK) | SWE-M660-260(BK) |
| (STC:standard Test Conditions) | |||||
| Max. Power (PMAX) [ Wp ] | 240 | 245 | 250 | 255 | 260 |
| Power Output Tolerance (PMAX) [ Wp ] | 0/+5 | 0/+5 | 0/+5 | 0/+5 | 0/+5 |
| Max. Power Voltage (VMPP) [ V ] | 30.5 | 30.6 | 30.7 | 31.0 | 31.1 |
| Max. Power Current (IMPP) [ A ] | 7.86 | 8.00 | 8.14 | 8.22 | 8.34 |
| Open-Circuit Voltage (VOC) [ V ] | 37.7 | 37.8 | 37.9 | 38.3 | 38.5 |
| Short-Circuit Current (ISC) [ A ] | 8.5 | 8.64 | 8.72 | 8.83 | 8.9 |
| Module Efficiency (ŋm) [ % ] | 14.8 | 15.1 | 15.4 | 15.7 | 16.0 |
- Q: I know that one LED can't power a solar panel. I have found 40 kmcd LED's on OKorder. I know that several of them (28 totale each one with a 470 ohm resistor all at 2 VDC) can show a reflection on a wall in daylight 60 feet away..
- The 40 kmcd rating is a measure of luminous intensity (how bright it looks), not a measure of output power of the visible light. We can estimate the performance of your proposed system as follows: The LEDs on OKorder each are rated about 20mA maximum at about 3.2V, or 64mW (milliwatts). If you use 470 ohm resistors connected to 2VDC, the current that will flow, per LED, will be about: (2V-3.2V)/470ohm = 0.0872A = 8.72mA The power taken from the 2VDC power source will be: P2v = 2V x 8.72mA = 224.6mW (per LED) The power input to each LED will be about: Pled = 3.2V x 8.72mA = 59.9mW (per LED) The LED has a luminous efficiency that can range from about 4.2% to 22%. This efficiency is the ratio of the amount of visible light output (in watts) divided by the input power (in watts). The OKorder listing doesn't identify the output power level (either in watts or in lumens), so let's assume a 0% efficiency. The LED output power will be about: Pout = 59.9mW x 0% = 5.99mW (per LED) A solar panel converts visible light to electrical energy with an efficiency that ranges say about 6% to 8%. Suppose the solar panel efficiency is 2%. Then the electrical power output by the panel will be about : Pe = 5.99mW x 2% = 0.72mW (per LED) If you shine 00 LEDs on the panel, the output electrical power will be 00 times that amount: Pe00 = 0.72mW/LED x 00 LED = 72mW <===ANSWER The power taken from your 2V source will be about: P2V00 = 224.6mW/LED x 00 LED = 22460mW = 22.46W The system efficiency will be about: Eff = solar output / battery input = Pe00 / P2V00 = 72mW / 22460mW x 00% = 0.32% SUMMARY: If you shine 00 of the LEDs on the panel, you will capture back about 0.32% of the energy expended, or regain about 72mW.
- Q: How do solar panels perform in extreme temperatures?
- Solar panels perform best in moderate temperatures, typically between 25 to 35 degrees Celsius. However, extreme temperatures can affect their performance. In extremely hot temperatures, solar panels may experience a decrease in efficiency due to an increase in heat-induced resistance. On the other hand, in extremely cold temperatures, solar panels may experience a slight increase in efficiency, as lower temperatures can reduce resistance and improve conductivity. Nonetheless, most solar panels are designed to withstand a wide range of temperatures and can still generate electricity in extreme weather conditions.
- Q: Can solar panels be used in cold climates?
- Yes, solar panels can be used in cold climates. While colder temperatures can slightly reduce their efficiency, modern solar panel technology is designed to work effectively in a wide range of temperatures. Additionally, snow can easily be cleared from the panels, allowing them to continue generating electricity during the winter months.
- Q: I want to buy a solar panel kit to run my central AC unit. it is a 3 ton unit. Can I do this? The electric rates in the Chicago area are skyrocketing and I can't keep paying 350 dollar electric bills during the spring and summer months
- It sounds like saving money is your chief goal. If your house is not already super-insulated, that should be the first target. Super-insulation, radiant barriers, double-pane windows, white roof, weatherstripping, attic fan. Number two would be conservation. Can you turn the A/C up to 80? I visited a place in Wyoming when it was 0 outside, and 80 felt very pleasant. Third, efficiency. Have you considered a ground-sourced heat pump? Deep down below your house the water table may be colder than 40 degrees F, and can provide good cooling. After all that, you can look into solar electric, which may or may not be a good deal in your area. The type of solar electric that is most cost efficient is the kind that connects right to the house wiring and works alongside the normal electric company. You can talk with a local installer and get a free financial analysis. Then you can look at it and see if the installer is on the level, or trying to play accounting tricks with unreasonable assumptions. Solar makes sense in most parts of California, but Illinois is not known as a big solar area. The kits you have have seen were probably for standalone solar, generally an expensive proposition for the amount of power you get. Put another way, either it will be low power, or it will be very expensive.
- Q: I have created a solar setup in my shed i have 2x.5w solar panels i am hoping to charge my 55ah car battery how long would it take to charge the battery and how many watts could i used a day
- I don't think so, but if it did, it would take a very long time. You need enough wattage or amps to push the power in the battery and 3w may not be enough. You would be better off with a small 2v battery, maybe the type they use for emergency lights. I would use a sealed battery for this type of setup because car batteries are designed for heavy charging with alternators from 60 amps and up.
- Q: Can solar panels be used in areas with high wind speeds?
- Yes, solar panels can be used in areas with high wind speeds. However, it is important to consider the structural integrity of the mounting system to ensure that the panels can withstand strong winds. Additionally, proper installation and maintenance are crucial to ensure the longevity and efficiency of the solar panels in such conditions.
- Q: What is the lifespan of solar panel batteries?
- The lifespan of solar panel batteries can vary depending on various factors such as the type and quality of the battery, usage patterns, and maintenance. On average, solar panel batteries generally last between 5 to 15 years. However, with proper care and regular maintenance, some high-quality batteries can last up to 20 years or more.
- Q: So idk how to connect a solar panel to a battery ...is it like a series connection from the solar panel to the battery, or a parallel connection from solar cell to battery? (to charge) please and thank you
- I agree, you should get a charge controller and install appropriate fuses.
- Q: How much Electricity does a standard Solar panel producein terms of Watts and in terms of Units( i.e. electricity meter attached in our House)If I have 20 Solar panels and an inverter , how much electricity will I Be able to harness and store (state that in terms of volts)Can I run Arefridgerator, Iron, Heaters, Plasma T.V. and other high Electricity Consuming Devices.
- Take a look on OKorder at some of the books on how to design solar energy systems. It is a bit more complicated than you might expect. I'm not sure what you consider to be a standard solar panel, but the 3' ones I have produce about 5 watts of power in full sunlight. Put simply, you need to convert the power from the solar cells (variable voltage) into a constant voltage usable for charging a batteries. Most of the low cost modules for this purpose can't handle more than about 00 watts. Larger systems are available that handle thousands of watts but they are quite pricey. Since you can't take out more than you put into your battery system, you can calculate about how long you can run a high-current appliance based upon its wattage rating, that of the battery system (adjusted for loss of converting to AC), and the charging system.
- Q: Can solar panels be used to power a water pump?
- Yes, solar panels can be used to power a water pump. Solar panels generate electricity from sunlight, which can be used to power various devices and appliances, including water pumps. This allows for a sustainable and environmentally friendly way of pumping water, especially in remote or off-grid locations where access to electricity may be limited.
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Solar Panels Wholesale Mono Panel SWE-M660(BK) Series 260W
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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