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The sun is one of the most fascinating parts of our lives. The sun does so much for life on the earth. Without the power of sun our water cycle would not occur and the temperature on this planet would be so cold that we would not be able to support life. Because of Sun we have Light on the earth. So Solar Panels produce electricity from sunlight. It makes use of renewable energy from the sun. They are actually comprised of an array of photo voltaic cells. The sun’s light strikes the individual cells, each of which emits electrons in response. The individual cells can be placed in either a parallel or chain circuit and those circuits connected into an array in order to produce the amount of power required. They are clean and environmentally sound means of collecting solar energy.
Solar panels produce direct current .DC is the type of current which is used by any battery operated apparatus like: Cell phones, cars, calculators, watches, etc. It is valuable to do investment on Solar Panel .It will also increase the value of your property. It will also helps in pollution free environment.
There are three types of solar panels.
1.single crystal
2.multi- or poly-crystalline
3.Amorphous silicon.
The most efficient type of solar panel used is Single-crystal. They produce maximum power per square foot of module. Their cells are fragile so they must be mounted in a rigid frame and they usually have a polka dot or checkered pattern.
Before installing them you must know solar energy benefits. The most important benefits of using this are:
1.It does not produce any waste or pollution.
2.It is safe to use and install.
3.It reduces cost
4.Depending on the size of system you install, you may not ever receive an electric bill again

Installing them at home is a great way to use the natural elements of the Earth to create energy. They are used to collect sunlight and convert it to energy that can be used for electricity.