20W CNBM Polycrystalline Silicon Panel for Home Using

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China main port
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Min Order Qty:
100 watt
Supply Capability:
1000 watt/month

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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 20 Number of Cells(pieces): 36
Size: 490×350×25mm

Product Description:

20W CNBM Polycrystalline Silicon Panel for Home Using

Production description

Emerging, third generation solar technologies use advanced thin-film cells. They produce a relatively high-efficiency conversion for the low cost compared to other solar technologies. Also, high-cost, high-efficiency, and close-packed rectangular multi-junction (MJ) cells are preferably used in solar panels on spacecraft, as they offer the highest ratio of generated power per kilogram lifted into space. MJ-cells are compound semiconductors and made of gallium arsenide (GaAs) and other semiconductor materials. Another emerging PV technology using MJ-cells is concentrator photovoltaics (CPV).

20W CNBM Polycrystalline Silicon Panel for Home Using


Long-term stability,reliability and performance 

Low breakage rate

Color uniformaity 

credit on customers

overseas storage


Physical characteristic


1. Rigorous quality control meets the highest international standards.

2. High-transmissivity low-iron tempered glass, strong aluminium frame.

3. Using UV-resistant silicon.

4. IS09001/14001/CE/TUV/UL  


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Q:Using a solar panel to make energy?
The Earth4Energy kit is the best system for people who are looking to save money on their home energy bill and want to build a energy generator at home .There is no other kit out there in the market like Earth4Energy that explains clearly with manuals or even includes videos. The Earth4Energy kit is available online for purchase. Many people can now have access to alternative solar and wind energy. and u will find step by step instructions
Q:electronics help solar panel?
[] Use it to charge 4 pieces AA cell ( connect in series to make 5V battery pack ) for 0 to 4 hours. Good for cell rated 600mAH ,2000mAH,2500mAH. [2] Cannot increase current. Buy some more this panel and hook them together in parallel to increase current. You need at least ten pieces to make current reaches .6A to light up some 6V bulbs.
Q:Solar panels...??? HELP!?
All depends on how many watts you have. I ran a small boom box off a 5w panel before with no problem. The higher the wattage, the more you can run.
Q:Are Solar Panels worth it in Southern California?
Build okorder.com
Q:Will my 8watt solar panel charge a car battery and how fast?
How about wind power? Check out this site, you can build one for under two hundred and get free batteries.
Q:What is the real cost of Solar Panels?
The cost of solar is measured in dollars per watt. That means the cost of a cell that can make one watt continuously in full sunlight. A friend of mine is starting a new job to set up a new solar cell factory and he said the present cost is $3 per watt, but that they expect to get that down to $ per watt in a few years. They can be damaged by weather, just like any regular roof. My insurance agent asked if I had solar panels, so it is a factor in insurance cost. I never heard of recycling or disposing of old panels, maybe because they are so new and last so long that not many are ready to be disposed of yet.
Q:Solar Panel Help Please!?
I will give you the tools to answer your own question. Here is the solar resource map: rredc.nrel.gov/solar/old_data/nsr... Use it to look up the hours of peak equivalent sunlight per day in your area. For example, let's say it's 5 hours / day. Then per year you get 365 x 5 = 825 hours of sun Your panel is 20 watts, or 0.2 kW So the energy produced per year is 825 x .2 = 383 kWh You'll have to use the proper numbers for your own area, of course. Anyway, you can take that 383 kWh and determine how much it would cost at local electric rates. Never know, on some islands, it's $.00 per kWh. Check with your local electric company for rates.
Q:i want to light up a building using solar panel what do i need?
The solar panels are made in China because there are fewer environmental regulations and cheap coal power. It takes a lot of energy to melt silicon and there are toxic waste products. It would be three to five times more expensive to make the panels in the US ( three times is just for reprocessing the toxic wastes ). Solar cell made in China are about $2 a watt, perhaps as low as $ a watt but in truth the claims for $ a watt or less solar panels as in thin film solar panels have much lower efficiency and require perhaps ten times more surface area.
Q:SunPower Solar Panels?
If they're all from Sunpower, they're all going to be very similar. Personally, I would ask each supplier to quote with the same model of panel, and see how the prices come out. I would buy based on just dollars per watt, assuming warranty and power tolerance were the same. The lower power panels are often a better bargain, just as the slower, slightly older CPUs in computers are a bargain.
Q:Could solar panels contribute to global warming?
I highly doubt it because they don't trap heat like carbon gas does in the atmosphere. Fossil fuels are literally destroying this planet and could eventually be it's demise it we don't accelerate it's elimination. If we could make the clock turn back to the early 20th century and focused on harnessing the sun and wind instead of burning fossil fuel as a means of transport and energy, we wouldn't even be talking about global warming or air pollutants that contribute to global health every year. The only thing the black panels to is create a darker surface but not much different than natural colors like dark dirt, dark green grass etc.

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