Solar panel is also known as a solar cell. It is the main product of the solar energy system, which occupies an important place among the renewable energy sources. Thanks to silicon cells, it converts the sun's rays directly into electrical energy (direct current). The most important feature that differentiates the panels from each other are the cells. There are basically two types of cells. Both types of panels are of good quality and have the same warranty period. The optimal choice should be made depending on the place of use and climatic conditions.