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What is the function of each component of the solar panel?

Solar energy is free green energy obtained from sunlight every day. Solar photovoltaic modules convert solar energy into electricity during the day, which is carried by solar cables. Components and functions of solar panels:

Surface material (choose one of the following):​

PET: English name is Motor Tests, referred to as PET. It is divided into scrub and bright light, which is the outermost layer of the solar panel, mainly protecting the solar cell and high transmittance, ensuring the solar panel to generate electricity.
ETFE: Ethylene Tetra Fluoro Ethylene, also known as ETFE. It is laminated out of the surface is uneven, life will be longer than PET, but shorter than glass, the role is the same.
Glass: It is the outermost layer of solar panels, must be strong and have good light transmission to obtain better panel performance. The main function of toughened glass is to protect solar cells from bad weather, dirt and dust.
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EVA: EVA sheet or "vinyl acetate" is used to bond the encapsulated battery sheet to the surface material layer. It should be durable and able to withstand extreme temperatures and humidity.

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Solar panels: An important part of solar panels, solar panels are strung together to make solar panels, including welding, packaging, mounting them on metal frames, testing, etc. The efficiency of solar panels is proportional to the efficiency of solar panels. The cost and efficiency of solar cells affect the overall performance of solar panels.

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​EVA: EVA sheet or "vinyl acetate" is used to bond the encapsulated battery sheet to the back material layer. It should be durable and able to withstand extreme temperatures and humidity.

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Back material (choose one of the following):​

PET: The final layer of the panel, providing mechanical protection and electrical insulation. It's essentially a protective layer.
PCB: The final layer of the panel, providing mechanical protection and electrical insulation. It's essentially a protective layer. The other one is that there's going to be a circuit on top of it.
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Bezel: The aluminum frame is also a key component as it provides structural strength to the panel. Frames made of strong but lightweight materials are recommended. It should be rigid and able to withstand extreme conditions such as strong winds and external forces. Another is to protect the four corners of the glass plate, encounter collision will not cause the whole piece to break.

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Junction box: The junction box is fixed to the back of the panel. It is the central point where the wires connect to the solar panels. Protect the connection of solar panels from water, play a waterproof role.

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