How to identify the quality of solar panels

Solar panels, also known as solar chips, are optoelectronic semiconductor chips generated directly from sunlight. It plays a huge role in various fields of new energy and has been widely used. Next, I will give you a brief introduction on how to identify the quality of solar panels. I hope it will be helpful to you.

1.Look at the front

The surface of tempered glass needs to be carefully observed, something some solar panel manufacturers don't pay attention to. The stains on the surface should be cleaned up in time, otherwise it will affect the efficiency of the battery.

2. Look at the solar cells

In order to save costs, many irregular manufacturers even assemble damaged solar cells into seemingly complete solar cells. In fact, there are significant risks. The problem may not be visible in the early stages, but it can easily break after being used for a long time. It affects the entire solar panel. When the temperature is too high, fire will occur, threatening people's safety.

3.Look at the back

The design of the back of the solar panel should indicate safety technical parameters, such as: open circuit output voltage, short circuit fault current, working voltage, etc., which then depends on the pressure-bearing effect of the control panel on the back of the solar panel. If traces such as a large number of bubbles or wrinkles appear after pressurization, the solar panel developed in this type is classified as unqualified.

4. Look at the junction box

The junction box is a connector for solar cell modules. Its main function is to output the electric energy generated by the solar cell module made of cables through the cable. Whether the junction box is secure is also related to the efficiency of the solar panel. The junction box cover and the junction box fit firmly, and the outlet lock should rotate freely and be tightened.

When purchasing solar panels, be sure to pay attention to the above 4 points. Additionally, we must be able to choose based on the configuration we need.