Abstract: A lighting system (1) has a first lighting circuit (2) configured to provide a first predetermined level of lighting intensity. The first lighting circuit (2) is configured to receive power from a mains electricity supply (3) or from a battery source (4) if the mains supply is unavailable. The first lighting circuit (2) is connected to at least one first Light source (5) and configured, when actuated, to provide lighting at the first predetermined level of lighting intensity. At this time, the first light source is in either an on or off state or a level of light required to raise ambient light level above a predetermined level. The system (1) further has a second lighting circuit (13) configured to provide lighting at least a second predetermined level of lighting intensity. The second lighting circuit (13) is configured to receive power from the mains electricity supply (3) and is connected to at least one second light source (14).

Abstract: A ceiling frame system 1 comprises a plurality of frame members 1 configured to depend from the ceiling. The frame members 1 include one or more service conduits 11 and are configured to be interconnected to one or more other frame members 1 to interconnect said service conduits 11 between predetermined interconnected frame members 1. The services are accessible at one or more predetermined locations along the length of each frame member 1. A ceiling frame member 1 is also provided.

Abstract: A lighting system (1) has a first lighting circuit (2) configured to provide a first predetermined level of lighting intensity. The first lighting circuit (2) is configured to receive power from a mains electricity supply (3) or from a battery source (4) if the mains supply is unavailable. The first lighting circuit (2) is connected to at least one first Light source (5) and configured, when actuated, to provide lighting at the first predetermined level of lighting intensity. At this time, the first light source is in either an on or off state or a level of light required to raise ambient light level above a predetermined level. The system (1) further has a second lighting circuit (13) configured to provide lighting at least a second predetermined level of lighting intensity. The second lighting circuit (13) is configured to receive power from the mains electricity supply (3) and is connected to at least one second light source (14).

Abstract: A ceiling frame system 1 comprises a plurality of frame members 1 configured to depend from the ceiling. The frame members 1 include one or more service conduits 11 and are configured to be interconnected to one or more other frame members 1 to interconnect said service conduits 11 between predetermined interconnected frame members 1. The services are accessible at one or more predetermined locations along the length of each frame member 1. A ceiling frame member 1 is also provided.