Solar Monocrystalline 125mm Panel Series(20W-25W)

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10000 watt
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100000000 watt/month

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Item specifice:

Material: Monocrystalline Silicon Max. Power(W): 25 Number of Cells(pieces): 36
Size: 650×290×25mm

Product Description:

Solar Monocrystalline 125mm Panel Series(20W-25W)

Product Description

1.High efficiency crystalline silicon solar cell. Even if under the weak light, the solar module can produce maximum power output.

2.Tempered glass (toughened glass): Anti-reflecting coating and high transmission rate glass increase the power output and mechanical strength of solar module.

3. EVA and TPT: Using high quality EVA and TPT to prevent destroying and water.

4. AI frame: Without screw, rner connection. 6 holes on the frame can be installed easily.

5. Junction box: Multi function junction box with water proof.

6. Long lifetime: ≥25 years; Less power decrease.

7. Good performance of preventing from atrocious weather such as wind and hails.

8. Resisting moisture and etching effectively, not effected by geology.





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

1.What price for each watt?

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

2.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.



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Q:Does It really cost that much to Install solar panels?
It depends on the number and size of the panels. The minimum charge for a small bungalow would be at least $20,000 labor and material.
Q:Do you need to pay for electricity if you have solar panels?
No standard home can operate on solar panels alone unless there is about an acre or more of them. Plus, they require lots of batteries and complicated switching devices. And, they are very expensive, so rarely pay back their up front cost. Right now, more of a gimmick than a practical solution to power needs in the home. The house you're looking at may use it to power emergency lighting in case the grid went down. Or maybe a small fan to exhaust heat out of the attic. Who knows. Just have to ask.
Q:Why did the voltage of a solar panel drop significantly after putting it through a step down voltage regulator?
you cannot treat the open circuit voltage of a solar panel like a voltage source (like a battery.) the load response of the panel doesn't behave that way. small panels and panels that are producing less than about .5A are very happy to have their output voltage pulled down to whatever they're connected to (typically zero.) I observed the same phenomenon when i connected a 2V 725mA panel to a 2V 325mA fan -- the open circuit voltage of 5V dropped to 3V when connected to the fan, and returned to 5V when disconnected. The easiest workaround is to use 2V of rechargable batteries in parallel with the panel so that the battery holds the 2V potential difference and the panel just supplies the current. any excess current charges the batteries, so you might consider whether or not you need some type of charge controller to prevent burning the batteries via overcharging. there are actually very few applications of solar panels connected directly to circuits that i have seen that have any kind of robust performance -- if they work at all, they eventually die/burn themselves out in a couple of months. the best robust designs always have a rechargable battery and charge controller somewhere in the power circuitry to buffer the load circuit from the panel. .
Q:How to charge a solar panel?
For the best answers, search on this site The charge controller will protect the battery. You might want to think about getting a fuse.
Q:Solar Battery System?
A solar panel is usually 36 cells and intended to charge a 2V lead acid battery. The battery in laptops may be somewhere between 5 and 20V. The panel might charge a laptop when it is cold, but they heat up in the sun and then it would no longer charge. Typical lap top power supplies are 3 to 4 amps. You need 2 panels in series to get enough voltage to charge the battery directly, but this is wasteful. If you want to charge at the same rate as a lap top power supply you need large panels to provide 5 amps. The 5 Amp panel will only give 5A when pointed directly at the full sun. There may be between 2 and 5 hours a day equivalent full sun depending where you are, time of year. If you want more than that, you need larger panels, or more than one in parallel for a 2V system. It makes sense to charge a 2V battery with the solar panel, and use that to operate the lap top with a car type power supply for a laptop, which runs from a 2V battery (see link below for an example). Get the biggest panel you can afford, and the battery should be larger if you want to run the lap top when the sun isn't shining. Perhaps a 20AH battery is a minimum size. All this costs more than a lap top.
Q:how to design a solar panel to store energy and convert it into electrical energy?
solar panels are designed to charge 2v batteries, now depending on the power you need you can determine what kind to use there are many power ratings for the modules, for example if you want to charge two 2v batteries you can connect them in parallel, if you want to reduce the charging time you can use more than one module in parallel to increase the power.
Q:explanation of solar panels?
You'd better build some sample project. For e.g, if you mean solar water heater, install one pc on your roof, and make it generate hot water, and tell people about it.
Q:Solar panel Efficiency in Tropics?
Duh - 000 W panel (rated in good sunlight) in 0 hours of good sunlight. Let me see - 0 * 000 = 0,000 wh or 0 kwh. Yup.
Q:Wanting to add solar panels to my home?
Unless there has been some major breakthrough in solar panel efficiency - Forget it. I had looked at some utility interactive systems where the electricity generated by the solar panels went through a special inverter and into the electrical system of the house, any power you didn't use went backwards through the meter and into the grid. I figured that even if it was sunny every day, it would take about 20 years to break even on the system. That is, if I had invested $5,000 in a small system, to save $5,000 off the electric bill would take 20 years. If I had $5,000 to invest, this wouldnt be the place! It would take much more than 20 years of electrical savings to match even a modest investment. Then, don't forget what happens if 0 years from now the inverter or some of the panels fail and need replaced. Invest in fluorescent lights, maybe even LEDs. You will see a much quicker return on investment. Install more insulation, put in a heat-pump system. I appreciate you desire to save some energy, solar just isn't going to be worth doing, at least not yet.
Q:can i join multiple solar panels?
It sounds like you intend to put them all in parallel, since you mention blocking diodes. If the panels are all roughly the same voltage, that should work. Mismatched panels will also work, but there may be little to no contribution from the lowest voltage ones if they are severely mismatched.

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