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. <EOS>