250w Polycrystalline Silicon Solar Panels on Flat Roofs with CE/IEC/TUV/ISO Approval Standard Solar
- Ref Price:
-
- Loading Port:
- Nanjing
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 watt
- Supply Capability:
- 1000000 watt/month
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Specification
Solar 250W Polycrystalline Silicon Solar Module With CE/IEC/TUV/ISO Approval Standard Solar
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.
China National Building Material (Group) Corporation (CNBM), established in 1984, is one of the largest State-owned group corporations of building & mechanical materials which specializes in the design, manufacturing and distribution of building materials in the world.
As the whole world turns “green”, CNBM enters into the Photovoltaic Industry in 2005.After 6 years' fast growth, now our annual capacity is 500MW solar panel and 500MW solar cell.
We now provide
• Monocrystalline Solar Panel
• Polycrystalline Solar Panel( multicrystalline silicon Solar Panel)
Features of our products:
Long lifespan: 25Years lifetime guarantee, 12years workshop warranty. 90% output in first 10years. 85% output in next 15years.If module fail during warranty period, please contact local dealer, and provide the warranty card to replace the products.
Solar panels are withstand extreme working condition (from -40°C to 120°C)
Grade A solar panels rated by TUV.
High transformation efficiency solar panels
New UV reflector protected Layer
Maintenance free solar panels
No exposed metal parts
Custom-made available
100% EL TEST before and after laminator for each solar panels
TUV,MCS,CEC,IEC61215,IEC61730,CE,UL approved solar panels
CHUBB insurance company to guarantee the quality of solar panels
Bankable solar panels in German,Italy,UK,Denmark country
As a professional Solar Panel manufacturer and Supplier in China, we have our customers come around the whole world and our specialization has got a worldwide recognition. Meanwhile, with our superior quality, competitive price, prompt and excellent service, As main role in trade section of CNBM Group, CNBM International Corporation supplies products including Monocrystalline Solar Panel, Polycrystalline Solar Panel ( multicrystalline silicon Solar Panel) have received and enjoyed famous reputation in many countries and regions in the world.
- Q: Hi. I need to build a solar panel for a project. it should be able to light a 60 watt light bulb. also, it should be about 3x3 ft if it is 50% efficient. if anyone knows any websites or can help me, please answer! thanks.
- I don't have any practical experience building solar panel arrays to power a given device, but allow me to make this observation. Solar cells, when exposed to sunlight, will each generate a given amount of power (watts), and by wiring these in series, you will increase the wattage. Now, a panel three feet square will give you a certain amount of power, provided all the cells are wired correctly in series, and it may not provide enough juice to light the bulb. You can work around this by adding a step-up transformer (which takes the incoming power and boosts it to the desired level for output, with no moving parts). Voila! You've illuminated your bulb. I will admit, though, you'll have to do some math to determine what you need. A search on the Web will help you find the formulae and other information you'll require. Good luck.
- Q: Can solar panels be used to power an entire home?
- Yes, solar panels can be used to power an entire home. With the right number of solar panels and a proper energy storage system, it is possible to generate enough electricity to meet the energy needs of a household. However, it is important to consider factors such as energy consumption, geographical location, and system size to determine if solar panels alone can entirely power a home.
- Q: Can solar panels be used for powering Wi-Fi networks?
- Yes, solar panels can be used to power Wi-Fi networks. Solar panels generate electricity from sunlight, which can be used to power various devices, including Wi-Fi routers. This allows for the establishment of Wi-Fi networks in remote or off-grid locations where traditional power sources are either unavailable or unreliable. Additionally, solar-powered Wi-Fi networks are environmentally friendly and sustainable, as they utilize renewable energy sources.
- Q: Can solar panels be installed on a car?
- Yes, solar panels can be installed on a car. Solar-powered cars have been developed and are being used as a means of reducing carbon emissions and increasing energy efficiency. These panels are typically mounted on the roof or hood of the car to collect sunlight and convert it into electricity to power the vehicle's functions. However, the amount of energy generated by these panels may be limited, and they are usually used as a supplemental power source rather than the sole means of propulsion.
- Q: Can solar panels be damaged by hail or other weather conditions?
- Yes, solar panels can be damaged by hail or other severe weather conditions. Hailstorms can cause physical damage to the panels, resulting in cracks or breakages. Additionally, extreme weather conditions like heavy snowfall or strong winds can also potentially harm the panels. However, modern solar panels are designed to withstand various weather conditions to a certain extent, and many manufacturers offer warranties that cover such damages.
- Q: Can solar panels be installed on metal roofs?
- Yes, solar panels can be installed on metal roofs. In fact, metal roofs are often a great choice for solar panel installations due to their durability and long lifespan. Additionally, the smooth surface of metal roofs makes it easier to secure and position the panels, maximizing sunlight exposure and energy generation.
- Q: Can solar panels be installed on a hotel or hospitality facility?
- Yes, solar panels can be installed on a hotel or hospitality facility. In fact, many hotels and hospitality facilities are adopting solar energy as a sustainable and cost-effective solution. Solar panels can be installed on the rooftops, parking lots, or any available open space to generate clean and renewable energy for the facility's electricity needs. This not only reduces the carbon footprint but also helps in saving on energy bills in the long run.
- Q: i took some solar yard lights apart and put them together in a series. i was told if you take AMPS times VOLTS = WATTS. do you test it with ac volt or dc volts? I tested mine with dc volts and got 4 volts in good sun and had my meter set on Ma or milliamps and got .83 which i am asuming that is .83 of one amp now i took those and multiplied .83 times 4 volts to = 34.03 watts. Is this large enough to charge a car battery in a day? And doese it make a difference for amps on how fast it charges or watts. i also was looking around and found 30 watt panels but had higher amps. I am very interested in building solar panels but i realize i dont know what i need to do to make shur they are big enough. my panel is only 9inch by 0 inch. It seems weird that i am putting out 4 volts
- If a car battery contains 50 amp hours of charge at 2 volts, that's 600 watt hours of energy. divided by 34.03 watts, 7.63 hours to charge completely in direct sunlight. You don't want to connect them all in series. You want about 4 or 5 volts to charge a 2 v battery, so you should connect groups in parallel, and connect those groups in series to make your voltage. You'll end up with the same amount of power, lower volts and higher amps. It will work for trickle charging your battery if it's not too far run down.
- Q: why don't we take a cue from mother nature and make our soar panels like trees? thousands of leaves or needle (like a pine tree) instead of one big flat panel? I mean it seems to work pretty good for all the plants i see why would it not work for us. It would be aesthetically pleasing and with the right engineering wouldn't it make them not have to worry about tracking the sun? i already have some ideas about the process of making them just no available labratory.
- Because we and the trees are trying to solve a different problem. We want electricity, a tree wants light (and some heat) for photosynthesis. In getting the electricity we use Silicon for solar panels. (Sometimes Gallium Arsenide). And we exploit the same thing in Silicon that allows them to be computer chips. The fact that they conduct differently when voltage is applied. But for a solar panel that is done essentially in reverse. We GET a voltage difference (electricity) from shoving energy through it. Look up junction bias on google or yahoo for explanation. But the DESIGN problem is: You have to couple these panels together the right way - according to their bias. You can't string them up willy nilly. There is a pattern. And when one breaks in this pattern. (I mean when the actual panel cracks, which they do easily as they are brittle). It can change the overall bias. This can make even be worse than if it was removed, it can actually fight against the working ones. The efficiency is there in arranging them like a tree, but the practicality of maintenance would be daunting.
- Q: How could I find out what the amp output of a solar panel? Specifically, I want to know how many milliamps can the solar panel on a Casio fx-260 put out?
- You need full sunshine from the sun, or a lamp that will give a light spectrum similar to the sun, a volt meter, Milli-amp meter, and a variable resistor of 0 to 000 ohms. The voltmeter test leads go across the solar cell leads. The amp meter leads will be in series with the solar cell. Let's say, positive lead of the solar cell to the the positive lead of the amp meter, the negative lead of the amp meter to one terminal of the variable resistor, and the wiper terminal of the variable resistor to the negative lead of the solar cell. Slowly decrease the value of the resistor until the voltage from the solar cell just begins to drop. Take note of the amp meter reading. This is about the high end range of the solar cell. You might want to begin with a micro-amp meter for the current meter.
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250w Polycrystalline Silicon Solar Panels on Flat Roofs with CE/IEC/TUV/ISO Approval Standard Solar
- Ref Price:
-
- Loading Port:
- Nanjing
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 watt
- Supply Capability:
- 1000000 watt/month
OKorder Service Pledge
OKorder Financial Service
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