Emergency Lighting Systems are battery-backed lighting devices that come on automatically when a building power supply goes ON / OFF. Emergency/Exit Units. can be directed to illuminate areas needed most in an emergency such as Emergency/Exit Units. Century Fire and Safety can provide Supply, Installation, Testing and Commissioning of different types of Emergency/Exit lighting systems. Century Fire and Safety can provide an annual maintenance service to assure that, Emergency lighting systems are functioning properly by a regular service visits.