Today solar power has become one of the most popular energy sources to power other appliances. Solar power has many advantages such as being renewable and also not causing any pollution in the environment. Using solar power can reduce your electricity costs by at least 75%. Polycrsytal panels are today used to capture solar energy and then convert it into another form. Today the advances in technology have made it possible to produce polycrystal solar panels more effectively. These type of solar panels are the cheapest and most common type of panels available in the market today.
The panel is made from a single block of silicon that has multiple crystals. The panels have a square shape and a mosaic type surface. The different crystals make up a single module. However the other panels have a smooth appearance since they are made from silicone crystals only. Such panels are called monocrystalline modules. The third type of panels makes use of a thin film layer. However the polycrystal solar panels are relatively less efficient than the panels made from a single crystal. They are quite simple to produce and even cost less in terms of manufacturing.
The durability and longevity of 
is as good as the monocrystalline panels. You can now have solar power in your hands at a much cheaper rate than the monocrystalline panels. The most common brands of polycrystalline panels include Sharp, Kyocera and BP Sx. These panels cost an average of 8.5 dollars per watt and they have about 12 percent conversion efficiency. This means that the panel is able to convert 12 percent of the sunlight as electricity. When a square meter of panel is exposed to direct sunlight it can produce a power of 125 watts. The panels work best in climates having an average temperature of 25 degrees Celsius. The panels lose their efficiency in case the temperature is 50 degrees Celsius or more.
Hence you can expect the solar panels to lose about 20 percent of their capacity in higher temperature conditions. The panels are dark colored. You should stress on the temperature conditions in your area before going for polycrystal panels.
Hence we see that polycrystal panels have their own pros and cons but they are relatively less costly than monocrystalline panels. They have more advantages than disadvantages and hence they are quite popular in terms of demand.