Open Circuit Voltage-Voc(V)
Maximum Power Voltage-Vmp(V)
Short Circuit Current-Isc(A)
Maximum Power Current-Imp(A)
Maximum System Voltage
Maximum Series Fuse Rating
Temperature Coefficients of Pmax
Temperature Coefficients of Voc
Temperature Coefficients of Isc
Nominal Operating Cell Temperature
Standard Testing Condition(STC)
Qualification Test Parameters
3.2mm High Transmission,Low Iron
Anodized Aluminum Alloy
3 Bypass Diodes
1*4.0mm² Length 900mm
3.The picture of the products
CNBM International Corporation is a professional solar panel manufacturer in China for CNBM brand . Silicon panel ( silicon module), as our main product, has high quality and good service. Our products are very popular in Europe, Australia, England, Middle East, Mexico, Argentina, Chili, Singapore and Africa.Furthermore, our products have gained international authorized certificates like TUV, UL and CE.
1). How long can we receive the product after purchase?
In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The perfect time of receiving is related to the state and position of customers. Commonly 7 to 10 working days can be served.
2).Can we visit your factory?
Sure, welcome at any time is believing.
3). Which payment terms can you accept?
T/T,L/C, l are available for us.
4)How to guarantee the Quality of the products？
We have established the international advanced Quality management system，every link from raw material to final product we have strict Quality test；We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-upservice assurance.
- Q:Do it yourself Solar Panels?
- Firstly, forget about making your own PV panels, while you can (if your chemistry is up to it and the home lab well tooled up) make a small PV cell, the efficiency will suck and you will never make enough to produce a reasonable amount of power. What you can do is to build your own solar thermal system to produce hot water (solar thermal makes better sense then PV in most domestic situations anyway), black painted central heating radiators under perspex, rockwool behind, small pump running a water/glycol mix through a heat exchanger controlled by some trivial electronics... Job done. As long as you don't try to run too hot, you can get a hundred watts or so of heat per square meter from such a solar thermal plant. Regards, Dan.
- Q:Does a solar panel work on a cloudy day or a rainy day?
- depending whether the solar array is back to grid or stand alone. Back to grid refers to the array being connect through the inverter to the main electricity supply grid. So when you are producing electricity from the solar array it feeds back into the main grid. Now if you are using more electricity than your array is producing then none will feed into the grid. The stand alone systems require batteries, which are charged from the electricity produced by the solar array. Solar arrays produce electricity on cloudy and rainy days but at a greatly reduced rate ; therefore little to no usable electricity is produced. Stand alone systems require batteries to store the electricity for use at night time and other times when the array is not producing . The back to grid systems require little to no maintenance as the electricity produced is fed back into the electricity network and stored there. Your meter is replaced with a dual meter . It reads your usage and your production. If in Australia you will get paid for the electricity you feed back into the grid. hope this helps.
- Q:Calculate solar panel energy output question?
- You have the area of the solar panel. You know their efficiency. What you need to know now is the energy (per area) delivered by the sun. The energy delivered by the sun can be found on the internet. Earth ,43 – ,32 W/m² (wikipedia) That is offcourse for your solar panels perpendicular to the ray's of the sun. If they are under an angle you should see what the area of the projecton of your solar panel is on a plane perpendicular to the ray's of the sun. So know you have the intensity W/m² and an area (or effective area). Here you go the energy deliverd by the sun. And 30% of it is what you get out of your panels.
- Q:How much money does it cost to make ONE solar panel?
- If okorder.com/.. Low-cost crystalline panel manufacturers such as Suntech are believed to have costs in the $.50/watt range today - making it $300 for a 200-watt panel. That doesn't mean that one can buy a panel for that price, of course. If you mean a DIY panel from purchased solar cells, the cost would be closer to $360 for an equivalent-powered panel, not counting the price of the frame, and the labor. A homebuilt panel would not stand up to decades of weather unless one spent even more on the frame. And since such a panel would not have safety certification, it could not legally be connected to the grid in most places. If you meant a water heating panel, please update or post another question - I'm sure people will chime in.
- Q:Generator for solar panels....?
- Usually, a generator is more cost effective than a battery backup system for your solar panels. Most grid-tied solar arrays are connected to the grid without batteries. My company has installed well over 00 solar arrays for residential and commercial clients and almost none of them had battery systems with them. Many clients asked to see the costs and after that, they agreed that a generator seems better, especially if there is access to fuel readily available. Also, unless there is a battery system, the solar inverters will not operate when the electricity goes out. This is a safety feature, but it keeps you from using any power at all from the panels when the grid goes down. This explains the utility interactive solar inverters compared to the stand alone generators.
- Q:know about solar panels?
- Solar okorder.com/
- Q:advice what solar panels to purchase?
- Are you talking about buying panels, or investing in stock? LDK does not make panels, they make solar grade silicon that goes into panels. I haven't heard bad buzz recently about any brand of panel. Therefore, I would go by price per watt alone. If you type in solar panel price into Google, you're sure to get directed to the major sellers, each of whom will sell many brands of panels. There are a couple other requirements that I would have for a serious system: ) Safety certification such as UL. This will be legally required for a grid-tied system. All panels except the really fly-by-night brands and factory seconds have this. 2) 25-year performance warranty. It's standard now for a manufacturer to guarantee that their panel will still produce 80% of the rated output after 25 years. Older panels may say 20 years. Junk panels will have no such warranty, or something ridiculous like 90 days or year. 3) Crystalline silicon. Monocrystalline or polycrystalline doesn't matter. Every few years, someone claims that they have an amorphous or thin-film technology that's durable. Being conservative, I'm still waiting for such things to be proven. Some crystalline panels have been in service since the 70's, although they are pitifully weak by today's standards. I've heard good things about the Sanyo HIT hybrid panels, but that's only from one person who had them installed.
- Q:question about GE solar panels?
- I wasn't aware that GE made solar panels. Perhaps they sold their name to someone, as they've done for all of their consumer electronics. But a 90-watt panel is $66.20 from the place below.
- Q:Solar Power...........?
- See answers to your previous questions!!
- Q:How can I regulate current from a solar panel?
- Lithium batteries do have special charging requirements. I would recommend that you use the 2 volt charger that came with them to keep them happy. Automotive power systems can have voltages as high as 4.5 volts when the engine is running so there's no need to limit the output of the panel to anything less than that. Check with the charger manufacturer to see what it will withstand. Some will work with systems up to 24 volts nominal (up to 29 volts actual) found in larger commercial vehicles such as trucks and busses. If your charger will work with both 2 and 24 volt systems you might not need anything extra to use the unregulated output of the panel. Otherwise I'd recommend a shunt regulator to clamp the output of the panel to no more than 4.5 volts. That way it would dissipate (waste) very little of the panel's power, and even that would only be during those rare times when the panel is producing maximum output. Such a device could be as simple as a high power zener diode, a low power zener coupled with a power transistor, or a precision shunt regulator such as a TL43 coupled with a power transistor. A more complex way would be a to use buck/boost regulator between the panel and your charger. You might gain a slight advantage under low light conditions when the panel isn't putting out much but the overall efficiency could end up worse than the simpler shunt regulator. Under optimum conditions, I would expect it to take a full day for a 3 watt (peak) panel to charge just one of your 35 Wh batteries. Charging an intermediate device such as the Sherpa 50 through its built in charger and then using it to charge your battery through yet another charger would severely cut your overall efficiency. Depending on how long you'll be gone, it might be far more practical, reliable, and economical to just carry (or find a way to be resupplied with) a few additional fully charged 35 Wh batteries. Don
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