How to distinguish the quality of solar panels

1 Look at the color Generally speaking, the appearance color of monocrystalline silicon and polycrystalline silicon panels is blue, and it is relatively uniform light blue or sky blue. If the color of the battery panel is dark and the colors are different, it must be that the workmanship is not meticulous.

2. Look at the surface of the tempered glass surface of the battery panel should be flat and free of foreign matter. In order to improve the production speed, some small manufacturers do not clean up the silica gel dripping on the surface of the tempered glass. If the silica gel is not cleaned, it will affect the power generation efficiency.

3. Look at the battery slices Each of the battery slices on the battery board is complete and is cut as a whole. However, many informal manufacturers in the market use broken cells to splicing together to form seemingly complete cells for welding. We are watching to see if there are any traces of cutting. This method has great risks. It may not be obvious at the beginning, but the spliced cells are easy to be disconnected again later, which affects the use of the entire battery board. Of course, this situation is difficult to detect with the naked eye.