Polycrystalline Silicon Solar Modules 20Watt

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Shanghai
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Min Order Qty:
200 watt
Supply Capability:
3000000 watt/month

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Product Description:

Polycrystalline Silicon Solar Modules 20WattPoly-Crystalline Module,  Poly 156 cell, 36pcs.Power 20w panel.

 

1.  Main Features of the Polycrystalline Silicon Solar Modules 20Watt Description

Warranties

1. 10 years limited product warranty

2. 15 years at 90% of the minimal rated power output

3. 25 years at 80% of the minimal rated power output

 

2. Polycrystalline Silicon Solar Modules 20Watt Specification

 poly156cell, 20w poly
Maximum Power(W)20w
Optimum Power Voltage(Vmp)17.2v
Optimum Operatige Current(Imp)1.17A
Open Circuit Voltage(Voc)21.8V
Short Circuit Current(Isc)1.23A
Solar Cell156*156mm Poly
Number of Cell(pcs)36 (2*18)
Brand Name of Solar CellsJA Cell, Bluesun Cell
Size of Module(mm)505mm*353mm*28mm
Cable & Connector TypePass the TUV Certificate
Frame(Material Corners,etc.)Anodized aluminium-alloy
Back sheetTPT
Cell Efficiency(%)13.8
Weight Per Piece(KG)2.25KG
FF (%)70-76%
Junction Box TypeIP65 PV junction box
Tolerance Wattage(e.g.+/-5%)0~3%
Front Glass Thikness(mm)3.2
Temperature Coefficients of Isc(%)+0.035%/K
Temperature Coefficients of Voc(%)-0.351%/K
Temperature Coefficients of Pm(%)-0.47%/K
Temperature Coefficients of Im(%)0.04
Temperature Coefficients of Vm(%)-0.38
Temperature Range-40°C to +85°C
Surface Maximum Load Capacity2400Pa
Allowable Hail Load23m/s ,7.53g
Bypass Diode Rating(A)12
Warranty100% of 10 years, 80% of 25 years.
Standard Test ConditionsAM1.5   1000W/m² 25 +/-2°C
Packingcarton or pallet

 

3. Detail picture of Polycrystalline Silicon Solar Modules 20Watt

Polycrystalline silicon Solar Modules 20Watt

 

4. Certificate of Polycrystalline Silicon Solar Modules 20Watt

Polycrystalline silicon Solar Modules 20Watt

 

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Q:who would win in this battle?
Trees for sure. Their already plotting the overthrow of humans.
Q:can i make a solar panel out of aluminum foil?
No but look in youtube for other ways of charging batteries . There is allot of neat ideas like building a small wind generator from scrap parts such as old speaker magnets copper wire out of transformers things that most people toss in the junk .
Q:What equation would i need to determine the raise in temperature of water going through a thermal solar panel?
solar panels don't store energy, they only generate it. If you want to store energy you need a battery bank of some kind to get you through the night and anytime the sun isn't shining. If you have a little extra in the budget you might look at a geothermal system for your home's heating and cooling needs. They're highly efficient systems and you can supplement however you like. Whatever you do, though I hope you have a good building envelope in place already. Solar panels are cool, but if you have a leaky house, you're still not getting the best out of your panels. Do the more mundane stuff first. Insulation, windows, and weather-tight doors.
Q:how to charge phone with solar panel?
see u have to make ur own ckt for this ur solar panel generate DC if u want to charge ur phine then its convenient way to harge with ur charger for this do this search for net to convert DC-AC convertor since ur charger work on AC so when ur solar panel generate DC it convert into AC that will charge ur phone in ckt u need this thing filter and amp ie the DC voltage come from solar panel 2 DC to AC convertor 3 AMP for AC 4 filter for AC and u are done....... fine ckt from google.....
Q:Adding Solar Panels to my home in Portland, Oregon?
I wish it was that easy! Maybe it will be soon. But at this time, no, there isn't. And if you have a solar collection system, you have to have a way to store the energy when you're producing more than what you are currently using. That usually involves an expensive battery array. But it's necessary. The power coming directly from the solar panels will be erratic and sending it to the battery array for storage and then use allows for the home to draw a consistent level of power. And this battery system also allows for storage of electricity for use when the sun isn't shining like at night. The system should be set up to use your power first, then go to the grid. It should also allow for distribution to the grid when your system has stored all the power it can and that's when your meter will run backwards and the power company will be paying you! There are a lot of federal and state income tax rebates for alternative energy installation costs. Check out what Oregon might toss into the package along with the Feds and see where you might come out.
Q:What specification of solar panel do I need?
Ive been employing the comparable photograph voltaic panels for 5 years, have flow some instances so as that they final lots longer than the roofs weve had over us. i'm coaching my young ones a thank you to construct wind turbines, because of the fact we shop having potential failiures whilst the wind blows. and recently its have been given very windy. I can charge banks of battery's and shop my place of work working from dc-ac converters.
Q:What capacity solar panel do I need to charge batteries with a total capacity of 25,000 mAhours in 8 hours?
WIRE THEM IN PARALLEL BUT MUST VIA ONE BLOCKING DIOED FOR EACH 4V BATTERY BANK ( LIGHT) BETWEEN SOLAR PANEL OUTPUT TO EACH BATTERY BANK. DIODE USES LIKE N5404 THAT CAN HANDLE 3A OR HIGHER IS BETTER. TOTAL AH = 9.8 AH FROM ALL 4 LIGHTS. NOT 25AH FROM YOUR MISTAKE RATE. TO CHARGE THEM FULLY IN 8 HOURS, CHARGING CURRENT AT LEAST .3A BUY SOLAR PANEL HAS OUTPUT 6V 2A ( OR 0W ) IS GOOD ENOUGH.
Q:what do we mean by efficiency of a solar panel?
That portion of the sun's light to which it responds, of which it converts 20% to electricity.
Q:Solar Panel load resistors?
Photovoltaic cells have a load curve that gives the power conversion based on the current drawn. This makes it harder to calculate. For instance, at infinite resistance, the solar cell will have a peak voltage that produces no power (P=I*V=V^2/r). At short circuit, the voltage collapses to essentially nothing and so the power is almost nothing. There is an optimal load (sweet spot) where the resistance applied will draw the most power out of the cell while not overloading it. This measure is either given by the manufacturer or found experimentally. Upon taking a lit panel that has no load and applying a 00 ohm resistance, the voltage will drop. By how much is entirely dependent on the array layout and specific cell characteristics. As the resistance drops from the optimal load point, the voltage collapses fairly sharply. As the resistance increases from the optimal load point, the voltage will rise more at first and then level off to the peak or no-load voltage.
Q:Will a 2W, 2V mono solar panel power up a laptop battery?
I'm afraid neither of these panels will do much for charging or running your laptop. If the power brick is supposed to emit 5 volts at 5 amps, that's 75 watts. Neither of those panels provides enough voltage and the power output is obviously far too small. The capabilities of solar power are vastly overestimated for small panels. Sunlight is limited to about kilowatt per square meter under ideal conditions (summer time, clear blue sky, for a few hours around noon in the US southwest). But consumer panels top out at about 5% efficiency, so your limit is 50 watts per square meter - in other words you would need about half a square meter, or about six square feet, of panel to provide 75 watts. And even under ideal conditions you will only get that much for a few hours each day. Also, the panel's voltage output is not regulated, so even if you find a panel that emits 5 volts (this would actually have to be made up of groups of 30 cells in series, as they emit half a volt each at most) you can't just connect the panel output into your laptop's DC in. You'd need a regulated DC-to-DC supply, and since that is not 00% efficient it will cost a bit of the power... now you need even more panel area. All in all, not really a practical thing to carry along on a camping trip.

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