(1) Tempered glass: Its function is to protect the main body of power generation (such as battery), and the selection of light transmission is required:
1. The transmittance must be high (generally more than 91%); 2. Ultra-white tempering treatment.
(2) EVA: It is used to bond and fix the tempered glass and the main body of power generation (cells). The quality of the transparent EVA material directly affects the life of the module. The EVA exposed to the air is easy to age and turn yellow, thus affecting the light transmission of the module. In addition to the quality of EVA itself, the lamination process of module manufacturers is also very influential. For example, the adhesiveness of EVA is not up to standard, and the bonding strength of EVA to tempered glass and backplane is not enough, which will cause EVA Premature aging affects component life.

(3) Cells: The main function is to generate electricity. The mainstream in the power generation market is crystalline silicon solar cells and thin-film solar cells, both of which have their own advantages and disadvantages.
(4) Backplane: function, sealing, insulating, waterproof. Generally, TPT, TPE and other materials must be resistant to aging. Most component manufacturers have a 25-year warranty. Tempered glass and aluminum alloys are generally no problem. The key is whether the backplane and silicone can meet the requirements.
(5) Aluminum alloy: Protect the laminate and play a certain role in sealing and supporting.