A lighting control system for controlling light intensity at a first target location having a first required illumination intensity associated therewith and a second target location having a second required illumination intensity associated therewith, said system comprising: (a) a light sensor configured to measure a first light intensity at a measuring location, wherein the light sensor is shielded from artificial lighting sources such that the first light intensity measured by the light sensor is solar radiation; (b) a processor; (c) a controller; and (d) a first luminaire associated with the first target location and a second luminaire associated with the second target location; wherein the system is configured such that the processor can: (i) receive a signal from the light sensor indicative of the first light intensity at said measuring location; and (ii) use said signal and a pre-obtained calibration relationship, between the first light intensity at the measuring location and a second light intensity at the first target location and between the first light intensity at the measuring location and a third light intensity at the second target location, to control the activation of the first and second luminaires via the controller, to meet both the first required illumination intensity at the first target location and the second required illumination intensity at the second target location. (a) a light sensor configured to measure a first light intensity at a measuring location, wherein the light sensor is shielded from artificial lighting sources such that the first light intensity measured by the light sensor is solar radiation; (b) a processor; (c) a controller; and (d) a first luminaire associated with the first target location and a second luminaire associated with the second target location; wherein the system is configured such that the processor can: (i) receive a signal from the light sensor indicative of the first light intensity at said measuring location; and (ii) use said signal and a pre-obtained calibration relationship, between the first light intensity at the measuring location and a second light intensity at the first target location and between the first light intensity at the measuring location and a third light intensity at the second target location, to control the activation of the first and second luminaires via the controller, to meet both the first required illumination intensity at the first target location and the second required illumination intensity at the second target location. (i) receive a signal from the light sensor indicative of the first light intensity at said measuring location; and (ii) use said signal and a pre-obtained calibration relationship, between the first light intensity at the measuring location and a second light intensity at the first target location and between the first light intensity at the measuring location and a third light intensity at the second target location, to control the activation of the first and second luminaires via the controller, to meet both the first required illumination intensity at the first target location and the second required illumination intensity at the second target location.