Polycrystalline silicon solar cell modules are a new generation of cell modules that have the advantages of high conversion efficiency and long life of monocrystalline silicon cells and relatively simplified material preparation process of amorphous silicon thin film cells. Polycrystalline silicon solar cell modules are the components of polycrystalline silicon solar cells. The following is an introduction to the main components and functions of polycrystalline silicon solar cell modules. 1. Tempered glass: its role is to protect the main cell of power generation), and the selection of light transmission is required, (1) the light transmittance must be higher than 91%); (2) ultra-white tempered treatment. 2. EVA: used to bond and fix tempered glass and the main battery of power generation.