Emergency lighting refers to lighting systems that automatically activate during a power outage or emergency situation. These lights are designed to provide illumination in areas such as buildings, airports, and public transport facilities, ensuring safe evacuation and guiding people to exits. They typically use battery power to function when the main electricity supply is interrupted. These lighting systems can include exit signs, emergency exit lights, and portable emergency lights. They are crucial for maintaining visibility in dark or smoke-filled environments, helping to prevent accidents and injuries. Regular maintenance and testing of emergency lighting systems are essential to ensure they operate effectively when needed.