The products are widely used in power engineering construction. The products are used in projects related to the production, transmission and distribution of electric energy. In a broad sense, it also includes the application of electricity as power and energy in various fields. During the construction or maintenance of power facilities, mobile power supplies can provide temporary power to the construction site to ensure the operation of construction equipment and lighting systems. In natural disasters (such as earthquakes, floods, hurricanes) or other emergencies, mobile power supplies can be quickly deployed to provide necessary power for rescue teams and temporary shelters.