20W Solar Photovoltaic Panel CE TUV UL CERTIFICATE

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Tianjin
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1000 watt
Supply Capability:
50000 watt/month

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Introduction

 

20W Solar Photovoltaic Panel CE TUV UL CERTIFICATE,this is a small kit for home or block. this product is a higer output version with stable power and we gurantee you for 25 years.            

 

suggestion

 

home lighting business lighting,

Garden lighting, pavement lighting    

Farmer household lighting

Decorative water pump

Traffic signal lighting

 

Product features

 

20W~25W output under standard conditions

Output Voltage 18V, suitable for 12V power system

Can fully charge up a 12V 7.2AH battery within 4~6 hours

Poly-crystallize Solar Cells from Taiwan or Germany

Product life over 25 years

Resistance to fluctuations of temperature, humidity and strong wind

Manufactured under IEC61215 Solar Photovoltaic Panel requirements

 

packing

 

Individual carton box for solar panel

2 solar modules in a carton

A carton board separates two solar panel

For LCL goods, we use bulk carton box or wooden boxes

 

Parameters

 

 

20W Solar Photovoltaic Panel CE TUV UL CERTIFICATE

20W Solar Photovoltaic Panel CE TUV UL CERTIFICATE

 

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Q:solar panel for 2 batteries(2 V)?
I don't know what you have avilable to you down there, but if you were in the states i'd say go to a camping supply store they have lots of solar options out today. check one link below
Q:solar panels vs (organic) plants?
Depends on the planet and solar panel. Generally, solar panels are more efficient according to these figures I bumped into. Photosynthetic efficiencies range from 0.% - 8%!
Q:Solar panels don't work when it's too hot/sunny?
WHAT? This is far from the truth, IN Scottsdale Arizona a small apartment complex was fitted with solar {photo voltaic cells in the late 70s. Every summer they sold electricity back to the power company. It gets up to 5 fairly often here, and as hot as 23 in the shade. On a roof top it is over 50 in direct sunlight. The opposite is true. When it is cloudy they produce less electricity. They may loose some efficiency when it is very hot, but not enough to make them not work at all, or even enough to really harm the output to any really appreciable extent. A new plastic photovoltaic material that produces about 40-45% of a silicon based solar cell is a neat option as it works when it is very cloudy, you can drive nails through it, and it is flexible. I think these items are kept artificially expensive by big business, but this is just a biased opinion of mine, but as far as not working in extreme heat, NO these solar panels work just fine when it is hot. I am in Phoenix Arizona, and it does not get a whole lot hotter than here. If the cells from the 970s worked OK newer ones are better and will do just fine too. Solar hot water heaters are a slightly different matter as they will over heat the water and the water must be mixed with cooler water, or you can really get into trouble. Maybe this is what he meant. Still I doubt it is enough of an issue to cause the device to be less efficient than a gas water heater, or electric, etc. Maybe he is referring to having to mix cooler water into solar heated water in a solar hot water heater, or some other system, Photovoltaic cells do not have any problems rendering them useless from hot weather on this planet, and in fact, they are used in space and it gets much hotter there.
Q:Which is the least expensive, yet still very efficient, type of solar panel?
image voltaic thermal or warm water beats PV or Photovoltaic on a daily basis. The Mono and Poly are the main conventional. they provide years of provider and function a shown song checklist. they do no longer seem to be very warmth tolerant. production will flow down on warmer day as maximum shrink sheets will instruct. Amorphous Panels are greater warmth tolerant. they're additionally greater valuable at production with ,low easy or in part cloudy days. They produce much less what in keeping with sq. foot and want a larger section. First image voltaic produces those variety of panels. HIT by utilizing Sanyo blends those 2 together to produce a panel with the main suitable of the two structures. All PV is costly. The payoff tiers from 7-2 many years in keeping with many components.
Q:Why only Photo-Voltaic solar panels?
I agree with you John and for the same reason already put forth as a negative. Solar thermal is a more mature technology. This is the reason why I spent so much of the last winter studying it. I can be reasonably sure that what I learn will not be obsolete tomorrow with a new technological breakthrough. I built a solar addition/greenhouse to personally study the effects. So solar thermal panels are not the only way to go. With respect to electrical production. I have seen parabolic reflectors coupled to stirling engines and solar thermal trough heaters used to supplement steam generation for alternatively gas fired steam / electrical generation plants. On a trip to China over 4 years ago I noticed solar hot water vacuum tube collectors being sold in their local hardware and big box style stores. These were gravity fed package units intended to have the tank on the roof with a supplemental electric backup. The vacuum tube collectors seem to be one of the latest innovations in this technology. Using phase change materials temperatures in these panels can be produced in excess of 400 deg F. and they are useful in colder temps and on cloudy days. While they are still costly for many applications, I have been discussing the use of vacuum tube collectors with the owner of a laundrymat. Solar thermal will not pay back as well as conservation in many cases of older construction, but it currently seems better than photovoltaic panels. Solar thermal requires more understanding of systems and relative efficiencies. In one way solar thermal is more like the electric car while the internal combusion engine is like photovoltaic. The idea of producing electricity from the sun is a sexier idea. It is also more in line with our paridigm of: just producing lots of energy and to H with any conservation efforts. For that reason it seems to get more press.
Q:how can you make your own solar cells for solar panels?
I don't have an idea but would surely refer you to a website where you would surely find information on solar cells and many more alternative energy questions.
Q:Solar panels?? I need help!?
Then search the internet for the best prices on a GTS grid tie system.
Q:Solar Panel Watts?? help!?
200 Watt Solar Panel
Q:Why should people use solar panels more for houses?
I purchased my system because it is a good financial investment. My system will pay for itself in less than 6 years, thanks to a generous rebate from my utility. Now when the nearly 20% rate increase my city just approved goes into effect my bill will go up about $4 a month instead of $40.
Q:how can i build my own, cheap, solar panels at home?
I have been researching solar electric (photovoltaic) for a while now and find that the up front cost will generally take 0 or more years to pay back. While the life expectancy is 30+ years, giving you 20 years of free energy, most people don't have the initial 20-30,000 start up cost. I've found that wind turbines can be built fairly inexpensively and parts can be easily obtained. The trade off is that wind turbines require maintenance and you also need to be in a reasonably windy area, many municipalities will have restrictions that will impact your ability to put one up as well. The batteries/converters to store/convert your power from DC to AC can also get expensive. Good Luck and thanks for being Earth Friendly and cost conscious! Let's hope that the cost of these products begin to decline as usage increases and new technology develops.

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