• Directly Sale High Efficiency 70W Poly Solar Module System 1
  • Directly Sale High Efficiency 70W Poly Solar Module System 2
  • Directly Sale High Efficiency 70W Poly Solar Module System 3
Directly Sale High Efficiency 70W Poly Solar Module

Directly Sale High Efficiency 70W Poly Solar Module

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

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Item specifice

Material:
Polycrystalline Silicon
Max. Power(W):
70
Number of Cells(pieces):
36

Directly Sale High Efficiency 70W Poly Solar Module

Quality Ensurance:
1. Excellent A Grade solar cell from Motech or Hanwha solar.
2. Excellent backsheet from SFC, 3M;
3. EVA from Bridgestone / First;
4. Junction box with UL and TUV listed - GZX, IP65;
5. High transmission low iron tempered glass from Xinyi Glass - China Top 1;
6. Solar panels with TUV, CE, ISO9001 certified.

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 25ºC cell temperature
Operating Temperature: -40 ~ +85° C
Storage Temperature: -40 ~ +85° C

Mechanical Characteristics
Dimensions: 771mm(L) x 665mm(W) x 35mm(H)
Weight: 6.1kg
Solar Cells: Polycrystalline solar cells, 36 cells in a 4x9matrix connected in series

Module Warranty:
25-year limited warranty of 80% power output; 10-year limited warranty of 90% power output;
5-year limited warranty of materials and workmanship.

Application: Solar streeting light, Solar pump, Solar home lighting system; Portable Solar System etc.

Performance
Rated Power[Pmax]70W
Power Tolerance± 3%
Nominal Voltage18.28V
Design Life25 years
Electrical Characteristics
Maximum Power            [Pmax]70W± 3%
Maximum Power Voltage [Vmp]18.28V± 3%
Maximum Power Current [Imp]3.83A± 3%
Short-Circuit Current       [Isc]4.22A± 3%
Open-Circuit Voltage       [Voc]22.0V± 3%
Current Temperature Coefficient0.08%/º C
Voltage Temperature Coefficient- 0.32%/º C
Power Temperature Coefficient-0.38%/º C
Maximum System Voltage1000V


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:They absorb solar heat and transform it into electricity, so there should be less heat left to warm the planet. Shouldn't we at least plaster all the world's deserts with them?
No, the top argument is that extra CO2 is inflicting the ambience to keep greater warmth from the sunlight. Having image voltaic panels might scale returned the quantity of CO2 interior the ambience we are putting in it real now via giving us an means source that doesn't emit CO2, and that's approximately it.
Q:Can solar panels be installed on a high-rise building?
Yes, solar panels can be installed on a high-rise building. In fact, high-rise buildings offer great potential for solar panel installations due to their large surface area and access to sunlight. However, it is important to consider factors like structural integrity, shading, and local regulations while designing and installing solar panels on high-rise buildings.
Q:Can solar panels be installed on a warehouse or storage facility?
Yes, solar panels can be installed on a warehouse or storage facility. In fact, warehouses and storage facilities are ideal locations for solar panel installations due to their large roof spaces and often minimal shading. Installing solar panels on these structures can help reduce energy costs, lower carbon footprint, and generate clean, renewable energy.
Q:Can solar panels be installed on a landfill or waste management site?
Yes, solar panels can be installed on a landfill or waste management site. In fact, landfills and waste management sites can provide suitable locations for solar installations due to their large available space and minimal shading. Additionally, installing solar panels on these sites can help utilize otherwise unused land while also providing renewable energy generation and reducing greenhouse gas emissions.
Q:Do solar panels require a specific type of mounting system for installation?
Yes, solar panels typically require a specific type of mounting system for installation. The mounting system is designed to securely hold the solar panels in place and ensure optimal positioning for maximum sunlight exposure. There are various types of mounting systems available, including roof mounts, ground mounts, and pole mounts, each suited for different installation scenarios.
Q:Ok, so I've been having much success with the joule thief circuit and a LED, but i tried hooking it up to a small solar panel that can put out 2.5v on it's own, and can light up a white LED dimly by it self to the joule thief and it will not work ....my question is why? I already trouble shooted it, the circuit is not the problem, is it the amount of amps the small solar panel is capable of? not enough?
Solar panels convert light energy to electrical energy with an efficiency of around 5%. A SMALL solar panel will only produce a small amount of power (watts) your joule thief circuit wont help because as you draw more current from the solar panel the voltage will drop; and your joule thief circuit just reduces the efficiency of the whole system Try adding another solar cell in series to get more voltage and more power.
Q:I had installed over the summer a solar panel system on my house. Hers some infofor you: I live in MOThe system cost 25K (Rounded numbers)The Rebate from the utility company was about 0KThe expected tax rebate will be about 5KI have a home office from which I work and is 5% of my homes sq footage. My question is though I am getting a basic tax rebate, should I be able to claim part of this off as an expense for my home office?It seams logical since I used to deduct part of my electric bill and I there for should be able to write off part of this. I am, after all using electricity and getting a bill from the utility that is higher than it would be if I didn't have the office2. If so which amount should it be? The full 25K or something after the rebates.
Pretty much stop existing.. Global Warming is Earth's way of pretty much saying..NEXT...We arent causing global warning its time for a change and the earth is doing it.. Mt St helens and also Mt Pinatubo put out more green house gases than anything humans did in history ..Its just a normal trend..Getting ready for the coming of another species.. just like it did with us and we survived ..that should be the question here ,how to survive the earths changes not what we can do about it. There is nothing we can do that will make a difference..Told Decaprio the same thing..
Q:Can solar panels be installed on a school or university campus?
Yes, solar panels can be installed on a school or university campus. Many educational institutions are adopting solar energy as a sustainable and cost-effective solution for their energy needs. Installing solar panels not only reduces greenhouse gas emissions but also provides educational opportunities for students to learn about renewable energy. Additionally, it can save the institution money on electricity bills and potentially generate revenue through excess energy production.
Q:we are doing a fundraiser to have students pledge to make donations for a solar panel instalation on one of the school buildings. I am looking for a slogan for the campain.
nasa solar panels seem to be better than silica / silicone (i forgot the exact chemical) they make them with ink and aluminum then case them in glass, they are supposed to last like 30 years or something. good stuff. anyway a SLOGAN: solar pannels save money, and over the long run allow the school to save tht momney or use it somewhere else in the school, ie better food, better seats, better computers, whtever. maybe you can relate the campain slogan to what the savings will be used for. maybe a new scince program thats funded solely on the savings of the panels. but ok a slogan: IT'S OBSCEEEENCE, ROTFL... GIVE SOME DOLLAR$$ AND GO GREEEEEN!!!!!! eh, i know not so hot, gimme a minuet. lol LET'S MAKE THIS PANEL HAP'N CAP'N... MIB! LMAO THE SUN, FREE FUN, COME ON AT LEAST GIVE ONE (place pic of dollar bill below the ONE) good luck.

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