1. safety factor: the power supply in the university dormitory is limited. Excessive use of high-power electrical appliances will exceed the carrying capacity of the power grid, leading to safety problems such as circuit overload, tripping and even fire.

2. Energy consumption control: University dormitories will set limits on electricity consumption to control the overall energy consumption. Restricting the use of electrical appliances above 600 watts can reduce power load and energy waste.

3. Electricity fee management: the collective measurement of university dormitories collects electricity fees. The use of high-power electrical appliances will lead to an increase in electricity bills and bring economic burdens to students.

4. Equipment aging: The wires and socket equipment in university dormitories are relatively old and can't stand the use of high-power electrical appliances. The use of high-power electrical appliances will lead to equipment aging, damage and even circuit failure.