Solar panels, also known as solar chips, are optoelectronic semiconductor wafers that directly generate electricity from sunlight. They play a huge role in various fields of new energy and are widely used, as long as they are photovoltaic products. The quality of solar panel components directly affects the energy efficiency of the products used. Nowadays, there are many manufacturers producing solar panels, and some low-quality products are also mixed in. It is not easy to choose high-quality solar panels. Below, we will explain how to judge the quality of solar panels.
1. Look at the front
Firstly, it is necessary to carefully examine the surface of tempered glass, which is also a mistake for some solar panel manufacturers. If the surface of tempered glass accidentally drips silicone, it should be cleaned in a timely manner. Failure to remove it will affect the power generation efficiency of the battery panel.
2. Look at the battery pack
Many irregular manufacturers, in order to save costs, even use damaged battery cells to assemble and form seemingly complete battery cells. There is actually a great risk, and there may not be any problems in the initial stage. However, the assembled battery cells can easily break under long-term use, affecting the use of the entire battery panel. When the temperature is too high, there may be a fire phenomenon, which threatens the safety of pedestrians.
3. Look at the back
The back of the solar panel should be marked with technical parameters, such as open circuit voltage, short circuit current, working voltage, etc. Secondly, the pressure bearing effect of the back of the solar panel should be checked. If bubbles, wrinkles, and other marks appear after pressure bearing, then this type of solar panel is classified as unqualified.
4. Check the junction box
The junction box is a type of connector for solar cell modules, and the main function of the solar photovoltaic junction box is to export the electrical energy produced by the solar cell module through the cable. The firmness of the junction box also affects the efficiency of the solar panel. The cover of the junction box should be firmly and tightly attached to the junction box, and the lock of the outgoing wires should rotate freely and tighten.
When choosing solar panels, it is important to pay attention to the above four points, and in addition, choose according to the configuration you need. This way, the quality of the selected solar panels is more guaranteed, safe, and reassuring.
