The product cabinet is a closed iron box. When the iron box is exposed to summer sunlight, solar radiation heat will be transmitted to the box through the exposed surface, and the temperature inside the box will rise. This will cause the rectifier module, inverter module, and UPS of the product to shut down due to overheating protection.. At the same time, if the temperature inside the box is too high, it is very detrimental to the battery. Both adsorption and colloidal sealed lead-acid batteries will lose moisture in the battery medium due to high temperature. Insufficient moisture in the battery medium leads to a decrease in battery conversion efficiency, ultimately resulting in battery failure and no output