Solar Panel(140w poly)with TUV and UL Certification in China

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Loading Port:
Shanghai
Payment Terms:
TT or LC
Min Order Qty:
-
Supply Capability:
3000pcs watt/month

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Product Description:

Mechanical Characteristics


Max-power Pm(W)                                  140

Max-power voltage Vmp(V)                     17.7

Max-power current Imp(A)                       7.91

Open-circuit voltage Voc(V)                     22

Short-circuit current Isc(A)                       8.78

Dimension(mm)                                1480*680*35

Weight(kg)                                               11.3

Operating Conditions

Operating Temperature                      -40~85°c                                    

Storage Temperature                         -40~85°c  

Maximum system voltage                      DC 1000V


Temperature and Coefficients


NOCT                                                     48± 2°c                      

Temperature coefficient of Voc(%/K)       -0.34

Temperature coefficient of Isc(%/K)         0.09

Power temperature coefficient(%/K)         -0.37

Quality and Warranty

 

--Peak power of single module is guaranteed in±3% power tolerance

--3 years limited warranty on material and workmanship

--Limited power warranty:10 years 90% and 25 years 80% limited warranty for minimum power output


Package Picture

 

 

IMG_8917_

 

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FAQ

I. Will you focus on the safety of the goods during transportation?

Yes, Safety of the cargo is the primary element that we would consider on transportation.

II..How would guarantee the quality will meet the requirements of your clients?

Before shipment, we will have inspection for each batch of goods.

III..What certificates do you have?

IEC,UL,TUV,CSA,etc.

IV..Can you do OEM according to clients’ requirements?

Yes, we have our own brand while we can provide OEM service.



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Q:How to connect solar panels?
Each solar panel will be wired to each other in parallel if you have more then one. When you wire in parallel the amps(current) from each panel will add to the total sum of current, but the total voltage stays the same. The voltage must match the rest of your system. For example, if your are using 2 volt solar panels you must be using 2 volt batteries and voltage regulator. Voltage regulator must be rated above maximum voltage and current(amps). Connect the output from the solar panels to a properly rated regulator, solar panel voltage regulators are rated by maximum voltage and amps, that will shut off the current flow to the batteries once the batteries are sufficiently charged there by preventing damage to the batteries. The way that you figure the rating needed for the regulator is by adding the maximum amps for each solar panel, this should be listed on the solar panel, and if they are 2 volt panels and they are connected in parallel then max voltage should be around 22 volts. It's the amperes that is most importance when choosing a regulator
Q:Solar panels with snow?
The energy from the sun is converted to electicity, so there's very little heat produced. I doubt the snow would melt. Try finding a way to scrape it off or have them rotate so you can let the snow fall off.
Q:how much power do i need from my solar panels?
You need an expert to figure out how many watts of power you will need and how many solar panels you will need to generate the wattage necessary to run your home plus charge the batteries for night use.
Q:how fast does a 25watt solar panel generate power to a battery?
If your house already has utility power, then your best move is usually to stay connected to the utility even when you install solar. Then, there are no batteries involved. Also, you never need to worry about not having enough power on cloudy days or at night. During the day, the solar panels drive the electric meter backwards, building up a credit with the electric company. Then at night, the meter runs forward normally. What you end up with is a very small electric bill instead of no bill, but the net cost is a lot less than using batteries. As to how large a system or how much it will cost, you would call a professional to size your system and give a quote. You can always say no if the numbers don't work out.
Q:energy and solar panels?
It depends on the size of the solar panels and the intensity of the solar-light. So, there's difference in every place. It's impossible to answer unless there's detail of panel size, panel quantities, average rainfall, average solar days, etc.
Q:260 watt solar panels on an rv?
There are many other controllers, you just need to get a sense for the limitations and make sure you are working within them. Controllers are not that hard to hook up, two connections simply go to the battery, plus and minus. Then the other two go to your panel. I like to put a switch at the panel output, leave it off while you are hooking up the panel side wiring of the controller, then when you are sure everything is connected properly, and you have some kind of battery power indicatioon at the controller, throw on the panel switch and see if it is charging. Remember that a panel is a power source, and connecting it to the controller while it is in the sun is like hooking up a car headlight while the lights are turned on. Another option is to wrap the panel in a blanket and put it in the shade while you are connecting it up. Your panel has a max amp rating, Imax, which will likely be around 5 or 6 amps at that voltage and wattage. Number 4 romex will work for that, as well as medium duty AC extension cord wire, if your run is less than 30 feet or so. Take care Steven, Rudydoo
Q:Is using a thick cardboard backing for a solar panel ok?
No,do not use card board because your cells are quite powerful. Accident short might cause fire. Replace it with another piece of plexi-glass.
Q:Are solar panels actually efficient?
i think that they are effective, even tho they cost heaps to get installed, i think that they are worth it. They dont require any effort to operate and use natural sunlight that turns into energy that people use everyday. they may be an eye sore but think of how much they are helping the earth and they are a great alternitave to fossil fuels (which are running out anyway), the only problem that i think they would have would be in winter when there isnt much sun on a few days. but other than that they are great
Q:How big of a solar panel system would I need to get ?
Since you are consuming 500 KiloWatts*hours (.5 MegaWatts*hours) per month on average, you need to find out how many KiloWatts per day, so 500 KWh*h / 30 days = 50 KWh per day. With an average of 2 hours of sunlight per day, or even more conservative of 0 hours of sunlight per day 50 KWh / 2 hours = 4.667 KW solar panel system 50 KWh / 0 hours = 5 KW solar panel system An average solar panel is 200W to 250W, so 5 KW / 200W = 25 solar panels 5 KW / 250W = 20 solar panels Solar panels are currently about $ per Watt, so 5 KW of panels is $5,000 A 5KW inverter that is about $5,000 Other incidentals are about $2,000 Total cost (not including labor) is $2,000 Price per KWh is about $0.0 per KWh for East South Central states. Savings per month is *at least* $50 since there are other charges in your electric bill other than usage that are tied directly to your usage as costs. So $50 / month * 2 months = $,800 per year $2,000 investment / $,800 per year = 6.67 years or 6 years, 8 months to pay off the system. Contact many Solar contractors in your area for competitive pricing of labor and for a more detailed analysis of your home.
Q:How many solar panels do you need to power a house?
Here in southwestern Arizona more and more solar panels are getting installed everyday. If it wasn't an economical thing to do I doubt if people would be doing it. Given that because of climate change our summers are getting longer and apparently hotter running an air conditioner gets evermore expensive. Also every year or so the rates go up. At the current rate of increase rates will easily double in a decade. Installing a solar array means that in far less than a decade, given a hefty down payment, any government subsidies and tax breaks in a couple of years you'll own your own electric company. Technically about /4 of the US would benefit from a true government program to install solar panels on all buildings. Years ago it became law that every building had to have electricity, running water and flush toilets. We need a similar law to hurry up a conversion to solar where practical.

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