What is the difference between portable UPS power supply and emergency power supply in terms of application scope

Application scope of emergency power supply: emergency lighting controller, fire emergency lighting and other equipment, centralized power supply for emergency lighting, crowded places with steps, ramps, escalators and other personnel, fire control room, power distribution room, power supply for various buildings and other places, which are indispensable equipment in today's important buildings.

Application scope of portable UPS power supply: outdoor office, outdoor photography, outdoor construction, standby power supply, emergency power supply, fire rescue, disaster relief, car startup, digital charging, mobile power supply; It can also be used in mountain areas, pastoral areas, field trips, travel and leisure, or in cars and ships without electricity. It can also be used as DC and AC power supplies.