A self-contained lighting fixture designed for outdoor mounting on walls, these units provide illumination during normal operation and feature an integrated battery system that activates upon detection of a power outage. This ensures continued visibility and safety in critical areas even when the main power source is interrupted. For example, these fixtures are often installed near building exits and in stairwells to maintain required light levels during emergencies.
The integration of backup power into these lighting solutions is crucial for life safety and security. They provide essential illumination to guide occupants during evacuations, reduce the risk of accidents, and deter criminal activity during periods of darkness caused by power failures. Initially developed to address safety concerns in commercial and industrial settings, these devices have evolved significantly with advancements in battery technology and LED lighting, offering increased efficiency and longevity.