An emergency light is a crucial device designed to provide illumination during power outages or emergency situations. It is typically powered by rechargeable batteries and automatically turns on when the main power supply fails. These lights are commonly installed in public buildings, stairways, corridors, and exits to ensure visibility and safety during evacuations. Emergency lights come in various types, including LED models, which are energy-efficient and offer longer battery life. Compact and portable versions are also available for personal use in homes or cars. In addition to their safety function, some emergency lights have multiple modes, such as flashlights or SOS signals, making them versatile tools for both indoor and outdoor emergencies.