A LIGHTING SYSTEM HAVING LIGHTING UNITS WITH LOCAL ENERGY STORAGE

摘要

A lighting system comprises a first lighting unit with a first energy storage device and a second unit with a second energy storage device, wherein said first lighting unit and said second unit are spatially separated from each other. Energy of the first energy storage device may be relocated to the second energy storage device in response to reception of a hazard signal such as a fire alarm signal, in particular relating to the location of the first energy storage device. This system reduces fire risks in a building having a networked lighting system, such as used in an office environment.