An elderly care and security system comprising one or more networked lighting luminaire, said lighting luminaire being designed to be mounted in a room of an elderly person's home at a spot on a ceiling or wall where electric power is available, said lighting luminaire comprising: A. one or more sensors and a processor whereto the one or more sensors are coupled, said one or more sensors and said processor being configured to: A1. reliably detect a fall of said elderly person and to generate first signalling in return to detection of said fall; A2. detect smoke in said room and to generate second signalling in return to detection of said smoke; A3. detect glass break in said room and to generate third signalling in return to detection of said glass break; A4. detect presence of another person in said room while said elderly person is lying in bed, and to generate fourth signalling in return to detection of said presence of another person; A5. detect presence of a person in said room or home while an alarm system is active after detecting no presence in said room or home for a period longer than a predetermined time interval, and to generate fifth signalling in return to detection of said presence of a person in said room or home while said alarm system is active; and A6. validly identify said elderly person, B. a lighting unit controlled to adaptively illuminate said room based on said first, second, third, fourth or fifth signalling; C. a wireless bi-directional transceiver (140, 150), loudspeaker and microphone (131, 132), configured to be activated automatically for voice communication with said elderly person, a caregiver or relative of said elderly person in return to said first, fourth or fifth signaling; D. a door locking/unlocking unit with connectivity to an electrical door lock, said door locking/unlocking unit being configured to automatically unlock a door in return to said second signalling and to automatically lock a door to create a safe room for said elderly person in return to said third signalling and/or said fourth signalling; and E. an alarm activating unit with connectivity to said alarm system, said alarm activating unit being configured to automatically activate said alarm system after detecting no presence in said room or home for a period longer than said predetermined time interval, and to automatically deactivate said alarm system in return to said fifth signalling and valid identification of said person. A. one or more sensors and a processor whereto the one or more sensors are coupled, said one or more sensors and said processor being configured to: A1. reliably detect a fall of said elderly person and to generate first signalling in return to detection of said fall; A2. detect smoke in said room and to generate second signalling in return to detection of said smoke; A3. detect glass break in said room and to generate third signalling in return to detection of said glass break; A4. detect presence of another person in said room while said elderly person is lying in bed, and to generate fourth signalling in return to detection of said presence of another person; A5. detect presence of a person in said room or home while an alarm system is active after detecting no presence in said room or home for a period longer than a predetermined time interval, and to generate fifth signalling in return to detection of said presence of a person in said room or home while said alarm system is active; and A6. validly identify said elderly person, A1. reliably detect a fall of said elderly person and to generate first signalling in return to detection of said fall; A2. detect smoke in said room and to generate second signalling in return to detection of said smoke; A3. detect glass break in said room and to generate third signalling in return to detection of said glass break; A4. detect presence of another person in said room while said elderly person is lying in bed, and to generate fourth signalling in return to detection of said presence of another person; A5. detect presence of a person in said room or home while an alarm system is active after detecting no presence in said room or home for a period longer than a predetermined time interval, and to generate fifth signalling in return to detection of said presence of a person in said room or home while said alarm system is active; and A6. validly identify said elderly person, B. a lighting unit controlled to adaptively illuminate said room based on said first, second, third, fourth or fifth signalling; C. a wireless bi-directional transceiver (140, 150), loudspeaker and microphone (131, 132), configured to be activated automatically for voice communication with said elderly person, a caregiver or relative of said elderly person in return to said first, fourth or fifth signaling; D. a door locking/unlocking unit with connectivity to an electrical door lock, said door locking/unlocking unit being configured to automatically unlock a door in return to said second signalling and to automatically lock a door to create a safe room for said elderly person in return to said third signalling and/or said fourth signalling; and E. an alarm activating unit with connectivity to said alarm system, said alarm activating unit being configured to automatically activate said alarm system after detecting no presence in said room or home for a period longer than said predetermined time interval, and to automatically deactivate said alarm system in return to said fifth signalling and valid identification of said person.