Lighting system comprising: - a set of suspended first panel lights (20; 200) distributed in a regular pattern; - a set of suspended second panel lights (30; 300) interspersed in said regular pattern; - a set of light sensors (207; 307) each operating under one respective panel light (20, 200; 30, 300), at a predefined height; - a plurality of control modules (610-i; 620-j) each capable of controlling the current of one respective panel light (20, 200; 30, 300); - a controller capable of conjointly controlling the control modules (610-i; 620-j) of the first and second lights; characterized in that: - the modules (610-i) of the first lights (20; 200) have a first state, in which they each execute a first primary law controlling a current level calculated so that the first lights (20; 200) conjointly produce a nominal first illuminance level in a predefined lighting zone, substantially uniformly, and a second state, in which each module executes a first secondary law controlling a respective current level calculated on the basis of a comparison between the illuminance measured under the respective light and a respective first setpoint value; - the modules (620-j) of the second lights (30; 300) have a first state, in which they each execute a second primary law controlling a current level calculated so that the second lights (30; 300) produce a second illuminance level in one or more sub-zones in the interior of said predefined lighting zone, and a second state in which each module executes a second secondary law controlling a respective current level calculated on the basis of a comparison between the illuminance measured under the respective light and a respective second setpoint value; - the controller is arranged to conjointly control the control modules (610, 620) of the first lights (20; 200) and of the second lights (30; 300) firstly to their first state, while storing in memory the illuminance levels measured under the panel lights (20; 200, 30; 300) by their respective sensors, then to switch certain at least of the control modules (610-i, 620-j) to the second state, with setpoint values calculated, at least partially, on the basis of the stored illuminance levels. - a set of suspended first panel lights (20; 200) distributed in a regular pattern; - a set of suspended second panel lights (30; 300) interspersed in said regular pattern; - a set of light sensors (207; 307) each operating under one respective panel light (20, 200; 30, 300), at a predefined height; - a plurality of control modules (610-i; 620-j) each capable of controlling the current of one respective panel light (20, 200; 30, 300); - a controller capable of conjointly controlling the control modules (610-i; 620-j) of the first and second lights; - the modules (610-i) of the first lights (20; 200) have a first state, in which they each execute a first primary law controlling a current level calculated so that the first lights (20; 200) conjointly produce a nominal first illuminance level in a predefined lighting zone, substantially uniformly, and a second state, in which each module executes a first secondary law controlling a respective current level calculated on the basis of a comparison between the illuminance measured under the respective light and a respective first setpoint value; - the modules (620-j) of the second lights (30; 300) have a first state, in which they each execute a second primary law controlling a current level calculated so that the second lights (30; 300) produce a second illuminance level in one or more sub-zones in the interior of said predefined lighting zone, and a second state in which each module executes a second secondary law controlling a respective current level calculated on the basis of a comparison between the illuminance measured under the respective light and a respective second setpoint value; - the controller is arranged to conjointly control the control modules (610, 620) of the first lights (20; 200) and of the second lights (30; 300) firstly to their first state, while storing in memory the illuminance levels measured under the panel lights (20; 200, 30; 300) by their respective sensors, then to switch certain at least of the control modules (610-i, 620-j) to the second state, with setpoint values calculated, at least partially, on the basis of the stored illuminance levels.