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The Functional Solar Light Panel

2016-06-30

Recently, Functional Solar Light are used widely in our life. And it seems that all solar lights are looks same, however, not all solar lights actually are created equally. This time we will introduce you three main attributes of solar lights, say, the structure, the size, and the connection.

1. Structure. There are several different types of solar panels but only three of them are most commonly used in solar lighting industry, namely, polycrystalline, mono crystalline, and amorphous.

Polycrystalline panels are made of solar cells that consist of a number of smaller silicon crystals. They can be recognized by a visible metal flake-type grain. These panels are most common and least expensive.

Mono crystalline panels are composed of homogeneous single-crystal silicon cells. In single crystal silicon, the arrangement of crystal atoms is continuous and unbroken. It can be identified by an even external coloring. Because of their uniform structure, these solar panels are more efficient and therefore more expensive.

Amorphous, unlike crystalline silicon solar panels, are not composed of crystals but rather a thin homogeneous layer of silicon atoms (usually sprayed over metal, glass, or plastic.) Because of the thin layer, these panels generally have to be bigger in size to hold as much energy as crystalline. However, amorphous panels have a structural advantage to crystalline panels, they are able to capture a wider spectrum of light, which, in turn makes them more tolerant of limited light conditions, such as cloudy days. And these panels are often used in security solar lights.

2. Size. Generally, the bigger the size, the more powerful the light. Believe it or not, the explanation is very logical. The bigger the panel, the more sunlight it will be able to absorb at once, the faster the lights will be charged. This attribute is important in areas with limited sun light. However, bigger is not always better. A huge solar panel might not be aesthetically pleasing. So, if your solar lights get plenty of sun during the day, a smaller panel will do the job.

3. Connection. This attribute is referring to the way the solar panel is attached to the light. Many solar panels are installed directly on top of the light, while others are connected through a wire. This feature becomes important when it comes to practicality. Wires might be unnecessary for outdoor solar lights that get plenty of sunlight exposure during the day but vital for any indoor solar lights or path lights placed in a shady spot. In this case only the solar panel that is connected to the lights through a wire needs to be placed in direct sunlight.