Unveiling the Differences Between Maintained and Non-Maintained Emergency Lighting

26th April 2024

Emergency lighting is a crucial aspect of any building’s safety measures, ensuring that occupants can safely navigate in the event of a power outage or emergency situation. Two common types of emergency lighting systems are maintained and non-maintained. Understanding the differences between these two systems is essential for building owners and facility managers to ensure that their emergency lighting meets safety standards and requirements.

Maintained Emergency Lighting

Maintained emergency lighting systems are designed to provide illumination both during normal operation and in the event of a power failure or emergency. These systems are typically used in areas where continuous lighting is required, such as stairwells, corridors, and exits. Maintained emergency lights are connected to the building’s main power supply and have backup batteries that will activate in case of a power outage. This ensures that these lights are always operational, providing consistent illumination for occupants to safely evacuate the building.

Non-Maintained Emergency Lighting

Non-maintained emergency lighting systems, on the other hand, are only activated during a power failure or emergency situation. These lights are typically installed in areas that do not require continuous lighting during normal operation, such as storage rooms, utility closets, or mechanical rooms. Non-maintained emergency lights are powered by separate batteries that are only activated when the main power supply fails. This allows for more efficient use of battery power since these lights do not need to be constantly illuminated.

Key Differences:

The primary difference between maintained and non-maintained emergency lighting lies in their intended purpose and design. Maintained emergency lighting provides continuous illumination during normal operation and emergencies, while non-maintained emergency lighting is only activated during emergencies. Additionally, maintained emergency lights are connected to the main power supply with backup batteries, while non-maintained lights operate independently with separate batteries.

Benefits of Each System:

Maintained emergency lighting offers the advantage of constant illumination for critical areas such as exit routes and escape paths, ensuring that occupants can safely evacuate in any situation. On the other hand, non-maintained emergency lighting is more cost-effective and energy-efficient since it only operates during emergencies when needed. Both systems play a vital role in ensuring the safety of building occupants during power outages or emergencies.


In conclusion, understanding the differences between emergency lighting maintained non maintained systems is essential for designing an effective safety plan for buildings. Whether you opt for maintained or non-maintained emergency lighting depends on factors such as building layout, occupancy type, and budget constraints. By choosing the right system for your needs, you can ensure that your building is equipped with reliable emergency lighting to protect occupants in times of crisis.