• Solar Panels Kits for Sale - Poly 305W Solar Panel / Popular Product Made in China System 1
  • Solar Panels Kits for Sale - Poly 305W Solar Panel / Popular Product Made in China System 2
  • Solar Panels Kits for Sale - Poly 305W Solar Panel / Popular Product Made in China System 3
Solar Panels Kits for Sale - Poly 305W Solar Panel / Popular Product Made in China

Solar Panels Kits for Sale - Poly 305W Solar Panel / Popular Product Made in China

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
100 watt
Supply Capability:
10000 watt/month

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Specification

Material:
Polycrystalline Silicon
Max. Power(W):
305
Number of Cells(pieces):
72

Poly 305W Solar Panel / Popular Product Made in China


Product Description

Produt name: 305W Poly Crystalline Solar Panel


Poly 305W Solar Panel / Popular Product
Specs

Electrical Characteristics
Maximum Power [Pmax]305W
Power Tolerance+/-3%
Maximum Power Voltage [Vmp]36.3V
Maximum Power Current [Imp]8.41A
Short-Circuit Current [Isc]8.78A
Open-Circuit Voltage [Voc]45.0V
Module Efficiency15.72%
Max. System Voltage1000VDC
Cell Size and SeriesPoly 156*156  72pcs (6*12)
Temperature Coefficient of Pmax- 0.47% / º C
Temperature Coefficient of Voc- 0.33% / º C
Temperature Coefficient of Isc0.05% / º C
Mechanical Characteristics
Dimension (mm)1956*992*45
FrameAnodized Aluminium Alloy
Glass3.2mm,High Transmission,Tempered Glass
Junction box & CableIP65 Rated weatherproof connectors
Cable: TUV 1x4.0mm2 / UL12AWG,Length:900mm
Weight22.0Kgs


Industry-leading Warranty:
Warranty on material and workmanship: 10 years
Guaranteed output of 90% after 12 years and 80% after 25 years.

Why Us?
1. We will always be there for any complaints!
    We has >20 years existence period and has other business. 
2. Wide Product Range
    Solar Panels 5W - 315W Customized & Standard
3. Imported Quality Silicon
    From Malaysia, Taiwan and Switzland.
4. Competitive prices
5. Great potentials in development with Clients.

Q: I am building a solar panel I have wired in series 36 .5 volt solar cells to produce 8 volts I have another panel that has 34 .5 volt solar cells to produce 7 volts. Any issues with wiring these 2 arrays in Parallel? I.E. would the smaller array take usable power away from the larger array?
Hmmm (8v -7v)/ 0 ohms .... shakes head....
Q: Solar panels are costly.Do you know any inexpensive way?So that i can make one of my own.
Solar cells are the cheapest way to produce electrical energy directly from the sun at this time. All other methods are experimental and not something the average person would ever want to use. If you are an engineer with a background in designing you might be able to pull it off but odds are you are going to spend a lot of money doing development work and not produce much power. It is possible to build you own hot water collectors to provide your domestic hot water. It is a lot of work but if you don't have the money to purchase the collectors it is an option.
Q: Can solar panels be installed on agricultural land?
Yes, solar panels can be installed on agricultural land. In fact, it is a common practice to utilize agricultural land for solar energy projects. This dual use of land allows farmers to generate additional income from leasing their land for solar panel installations while continuing their agricultural activities. Moreover, solar panels can provide shade to crops, reduce water evaporation, and improve overall farm sustainability.
Q: Can someone tell me if I can run a air conditioner off solar panel?I have a ET-P65420 20Wp solar panel. What do I need to make it work? I am told I will need a Enphase Energy Microinverter M20. Is that true? I am looking to run a 5000 to 8000btu air conditioner to a max of 0000btu air conditioner. I need to cool a 0x30 space. One time I read, I need total watts of panel to match total watts of air conditioner. Then I read, that I do not and can run more watts then what the panel is depending on the inverter and batteries.Can someone tell me what and how to make this work please? More panes or inverter and batteries?
You can expect such an air conditioner to use something like 500 - 800 watts of power. The ET-P65420 20Wp solar panel produces at most 20 watts so you will need at least three of them. Since solar cells make DC (Direct Current) electricity, and air conditioners use Alternating Current (AC) electricity, you do need an inverter. The M20 is a 220 volt inverter, and I suspect you are looking at a window air conditioner that will probably use 0 volt power. And the M20 only puts out a maximum of 240 watts so you need one for each of the 3 or more solar panels you will have to use. So the first thing to do is shop for air conditioners, getting the most energy efficient model you can find, paying close attention to the voltage and wattage ratings in the owner's manual or on the UL label on the back. Say it is a 500 watt, 0V unit. You will need three solar panels and three 0 volt model inverters. Also note that the 20 watt rating of the solar panels if when the panel is facing DIRECTLY at the Sun. If you just lay them on the roof, then even if the roof is sloped at a good angle (30 degrees) and facing south, it will only produce the maximum power around noon. 4 hours before noon, unless to go up there and tip them up to face the morning Sun they will probably produce only about half that amount of power. So right there you either need a motorized mount to automatically follow the Sun or twice as many panels. However, if you are going to connect the solar panel(s) into the house power, so that it(they) merely supplement the power company power, then you can use any amount of panels, and the power company will supply whatever extra power you need. That requires a licensed electrician to do. Or if you want to just power the air conditioner directly from the solar panels without any interconnection to the house power, then you need to know a lot more about electricity that you appear to know.
Q: I've been thinking and I'd like to have solar panels installed on my roof at some point to help reduce our electricity consumption- but I live in IL and in the winter it frequently snows. Is there such a thing as heated solar panels so they don't get coated w/ice or snow? Are solar panels even a feasible option in IL? Thank you, Anna
With state incentives that rank behind only a few states (such as the ones typically associated with solar like Florida and California) somebody definitely thinks solar is right for Illinois. (source is first site below) As for the ice and snow the typical strategy is to have a tilt that allows for only limited accumulation and still has good orientation to the sun. This is frequently talked about in articles in the magazines Homepower and Solar today. Homepower has a site online and some items are free (2nd site) Good Luck
Q: Im curious because I read about a boy who invented a 3d solar panel, using a pyramid he designed a solar panel that collects light more efficiently. Now I have a question. Why cant I design a solar panel that takes adventage of convex and concave mirror's and use a surface that collects light and then focus's the suns energy into a beam and take the beam into a chamber where the solar panels are sitting and surround them with mirrors as well, so any light not obsorbed by one particular spot is reflected to another area for reabsorbtion. I know solar panels dont absorb light but perhaps that will allow more light to create the effects it needs.
I okorder /
Q: Can solar panels be installed on a government building or facility?
Yes, solar panels can be installed on a government building or facility. In fact, many government entities have already started incorporating solar energy as a sustainable and cost-effective solution to meet their energy needs. Solar panels not only help reduce carbon emissions but also provide long-term savings on electricity bills.
Q: DIY, buying solar panels, room is barely 200 sq. ft. have a 5000 btu air conditioner, how many watts do I need, thinking of buying 75 watt solar panels, have space on the roof.
Build okorder /
Q: Can solar panels be used for off-grid living?
Yes, solar panels can be used for off-grid living. They provide a reliable and sustainable source of electricity by converting sunlight into usable energy. This makes them ideal for powering homes, cabins, or even recreational vehicles in remote areas where access to the utility grid is limited or unavailable. Solar panels enable off-grid living by storing excess energy in batteries, allowing for electricity usage during nighttime or cloudy days.
Q: How do solar panels affect the local economy?
Solar panels can have a positive impact on the local economy by creating jobs in the installation, manufacturing, and maintenance sectors. Additionally, the use of solar energy can reduce electricity costs for residents and businesses, freeing up funds that can be spent elsewhere in the local economy. The deployment of solar panels can also attract investments and contribute to the growth of a sustainable and eco-friendly image for the community, potentially boosting tourism and attracting new businesses.

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