Solar panel, also known as solar chip, are photoelectric semiconductor sheets that generate electricity directly from the sun. The quality of solar panel components is directly related to the energy efficiency of the products used. How to judge the quality of solar panel？

1. Look at the front

Look carefully at the surface of tempered glass, which is the careless part of some solar panel manufacturers. If the surface of tempered glass is dripped with silica gel carelessly, it should be cleaned up in time. If it is not clear, it will affect the power generation efficiency of battery panels.

2. Look at the solar cell

In order to save costs, many irregular manufacturers even assemble damaged solar cell to form seemingly complete solar cell. In fact, there is a great risk. The spliced solar cell are easy to break in long-term use, which affects the use of the whole solar panel. When the temperature is too high, there will be a fire phenomenon, threatening the safety of life.

3. Look at the back

The back of solar panels should be marked with technical parameters, such as open circuit voltage, short circuit current, working voltage, etc. Secondly, the pressure-bearing effect on the back of solar panels should be considered. If there are traces of bubbles and wrinkles after the pressure-bearing, the solar panels are classified as unqualified.

4. Look at the junction box

The junction box is a kind of connector of solar cell module. The main function of the solar photovoltaic junction box is to export the electric energy produced by the solar cell module through the cable. The solidity of the junction box is also related to the efficiency of the solar panel. The cover of the junction box should be firmly and tightly attached to the junction box, and the locks of the outlet wires should be rotated freely and tightened.

When choosing and purchasing solar panels, we must pay attention to the above four points. In addition, we should choose the solar panels according to the configuration we need. In this way, the quality of the selected solar panels is more guaranteed and more secure.

Founded in 2010, Xindun is a new energy high-tech enterprise, which has been focusing on the research, development, production and sales of solar photovoltaic inverters and solar panels. If you have any questions, please contact us.