Silicon Polycrystalline Solar Panel 305W

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We are a high-tech group wich specializes in solar products design,research, manufacture, sales,solar projects design and installation. 

Our present annual capacity is 6 million for wafer, 60MWp for solar cells,200MWp for solar modules and one hundred thousand for solar applications. It is expected that the annual capacity of 2012 will be up to 30 million for wafer, 300MWp for solar cells, 1000MW for solar modules and 2 million for solar applications. 


This installation Manual contains essential information for the electrical and mechanical installation that your must know before installing CUSTOMER PV modules. This also contains safety information you need to be familiar with .All the information described in this manual are the intellectual property of CNBM and based on the technologies and experiences that have been acquired and accumulated in the long history of CUSTOMER. This document does not constitute a warranty, expressed or implied.

CUSTOMER does not assume responsibility and expressly disclaims liability for loss, damage, or expense arising out of in anyway connected with installation, operation, use or maintenance of the PV modules. No responsibility is assumed by CUSTOMER for any infringement of patents or other rights of third parties that may result from use of PV module.

CUSTOMER reserves the right to make changes to the product, specifications or installation manual without prior notice.



To ensure proper system operation to maintain your warranty, observe the correct cable connection polarity(Figures 1&2) when connecting the modules to a battery or to other modules. If not connected correctly, the bypass diode could be destroyed.

PV modules can be wired in series to increase voltage. Connect wires from the positive terminal of one module to the negative of the next module. Figure shows modules connected in series .

 Silicon Polycrystalline Solar Panel 305W


Maximum Power






Frame Colar


Manufacture Site



Anodized Aluminum Alloy


27 kg

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Q:Whats the annual energy output of the average solar panel.?
Average Solar Panel Output
Q:Solar Panels for Jacuzzi?
You can do this by isolating the jacuzzi, you will need a solar array adequate for the power draw of the jacuzzi, a charge controller, battery bank, off-grid inverter and switch gear. This is the expensive way to go--especially if you are planning to heat the water with the solar. A better option would be to heat the jacuzzi with solar thermal panels. It is plumbing instead of electrical, but the cost would be much less. If you still want to do PV (electric) solar, think about putting a non-isolated grid-tie solar array on your home. They are much cheaper, and if you think about it, it really does not matter if you use the solar electricity to run a light, a fridge, a TV, or a Jacuzzi, that amount of power is subtracted from your overall house power bill. Just size the array for the power output of the jacuzzi, and let the power meter do the rest. Your overall result will be the same and the system will be half the price, or less.
Q:What exactly is a solar panel?
What a solar panel REALLY is is a political rip-off in which the government takes money from me to help you buy solar panels that produce a fraction of the power you could have bought with the money they stole and which required more volatile chemicals to manufacture than would have been created in the consumption of that same power.
Q:question about GE solar panels?
Retail, between $5 to $6 /watt.
Q:SunPower Solar Panels?
You should get the highest efficiency at the lowest price. Typically, the Sunpower brand panels have the industry best 23% efficiency depending on the model. You have to look at the specification very closely and if you don't see it, ask. There are two types of solar cells Polycrystalline and Monocrystalline. Polycrystalline cells are inferior to Monocrystalline. You will also see that different kinds of panels have different output voltages.Since you will be wiring your panels together and connecting them to either a power inverter or a charge controller (if you have battery backup), you need to make sure the panels and controller work together for maximum efficiency. Be very careful when engaging an installer especially when they are trying to sell you the equipment too. Mostly, these are not engineers and you will end up with whatever they have in stock without regard for the most optimal design.
Q:2v vs 24v solar panel?
The choice of solar panel voltage comes down more to what the panels will be connected to. You're right that power can remain the same at the different voltages. Higher input (panel) voltages are sometimes used in inverter systems to reduce the effect of voltage draw-down. 2v panels (about 20v open circuit) work well for charging 2v batteries, connected in parallel, through a charge controller. For use of a grid-tie inverter, higher input voltages are sometimes used to reduce the effects of draw-down. You want to select and wire (parallel vs. series) your panels based on the input voltage requirement of the load, whatever it may be.
Q:What should the voltage be on a small marine solar panel?
Mark, the 2 vdc is pretty typical. Most panels for home use are set up to charge 2 volt batteries, and they are wired for an, open circuit voltage of 8 to 9 volts. This allows it to have enough voltage to feed through a few diodes, perhaps a charge controller and 30 or 40 feet of wire and still have at least 5 volts left over. Once you connect it to the battery the panel will drop to whatever the batteries charging curve voltage would be. If you have a few minutes, I would suggest getting a book at the library called, The Complete Battery Book, by Richard Perez. Just read the chapters pertaining to lead acid batteries, the other discussions on lithium, ni cads and such won't apply to your boat system. If your panel is not large, and it's short circuit current rating in amps is less than 2% of the amp hour capacity of the battery, you can even run the panel without a charge controller. The book explains this as well. There is a great magazine that gets into the nuts and bolts of this stuff, it's called Home Power, you can find it online. You might also find some info at a couple renewable energy websites, I will list them below. Panels are rated in two ways, open circuit voltage, which you measure with a multimeter while the panel is in open sun and nothing is connected to it. The other rating is short cirucuit current, which you measure with an ammeter while the panel is in the sun as well. You connect the ammeter across the output of the panel and let all the power short right through the meter, so you'll need an ammeter big enough to handle more amps than the panel puts out. A 0 amp unit will work for your boat panel. These tests won't hurt the panel, or the meters, we do it all the time in the field, and the manufacturers will tell you to do the same test if you have a problem with a panel and they want to know if it's malfunctioning. You can check one of their websites if you like. Good luck Mark, and take care, Rudydoo
Q:Need Large solar panels. ?
I think you may be surprised how much energy a little cafe like that uses. Since the air conditioning, refrigerators, and other appliances are going nonstop, I'd expect the energy usage to be several times that of a normal house. If you have access to the electric bills of the cafe while it was in operation, look up the kWh's used per month. For scale, I will say that our house uses 500 kWh per month, and needs 3 kW of panels to keep up with that. Scale up to match the restaurant, as a ballpark estimate. If you don't have access to the electric bills, then go visit a similar cafe in town, or a nearby town, and ask them how much their electric bill is. If the ballpark estimate still looks doable to you, then contact a professional solar installer to get an accurate, no-obligation estimate. Most likely, the cafe will use gas heat for cooking. But if not, electricity from solar panels is probably the most inefficient way to cook. Consider having solar ovens for most of the cooking, if you have land, with gas as a backup on cloudy days.
Q:What are solar cells made of?
image voltaic cells paintings for the period of the photoelectric effect. Incoming photons knock out electrons of the textile, which being a semiconductor helps a small ability distinction. close to to the sunlight, each and everything could be very severe (like a Van Halen gig), radiation, energetic ions, magnetic fields, the works. of direction, NASA project planners could take all those issues into consideration. i ask your self what textile maintains to be stable at 5800º ok (or perhaps it fairly is not needed), and captures all photons of all energies, to be one hundred% powerful. The link provided by making use of Snow Blossom is extremely thrilling. I do in simple terms no longer look waiting to study the secondary link Thermophotovoltaics. Edit: image voltaic Flares may well be a difficulty. they're by making use of and great unpredictable, upward push for hundreds of miles, achieving hundreds of thousands of Kelvin.
Q:Is this a good kit for building a solar panel?
I lower right corner is home built solar panels

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