Method for controlling a LED light apparatus comprising a carrier element; a plurality of strings (3; 3a-3e) of LEDs, fixed to said carrier element; a plurality of groups (5; 5a-5e) of primitive optics (6; 6a-6e), each of said primitive optics (6; 6a-6e) being associated with a respective LED, and configured for concentrating and conveying the light emitted by the respective LED; a power supply unit, provided with a plurality of independent outputs, each connected to a respective string (3; 3a-3e) of LEDS, and a control unit for the current that powers the single strings (3; 3a-3e) of LEDs, which is operatively connected to said power supply unit; said method comprising the steps of: powering each of said strings (3; 3a-3e) of LEDs, by means of said power supply unit, all at the same time and in a differentiated manner for each string (3; 3a-3e), so as to modulate the absorbed power thereof, and so as to obtain an overall photometric distribution of the LED light apparatus that derives from the combination of the light intensities emitted by said strings (3; 3a-3e), each modulated in an autonomous manner, characterised by: providing a plurality of matrices (P i), each of which representing the light intensity values obtained with the i-th group (5; 5a-5e) of primitive optics (6; 6a-6e); providing a one-dimensional matrix which represents the dimming values of the single channels of said strings (3; 3a-3e) of LEDs, with values comprised between 0 and 1, wherein the i-th value of is indicated with (b i); determining a matrix, which represents the light intensity values of the combination of all said strings (3; 3a-3e) of LEDs of the apparatus, in the following manner: F = ∑ i = 1 n b i ⋅ P i carrying out, by means of said control unit, the dimming of the current that powers the single channels of the strings (3; 3a-3e) of LEDs, by means of said matrix. a carrier element; a plurality of strings (3; 3a-3e) of LEDs, fixed to said carrier element; a plurality of groups (5; 5a-5e) of primitive optics (6; 6a-6e), each of said primitive optics (6; 6a-6e) being associated with a respective LED, and configured for concentrating and conveying the light emitted by the respective LED; a power supply unit, provided with a plurality of independent outputs, each connected to a respective string (3; 3a-3e) of LEDS, and a control unit for the current that powers the single strings (3; 3a-3e) of LEDs, which is operatively connected to said power supply unit; said method comprising the steps of: powering each of said strings (3; 3a-3e) of LEDs, by means of said power supply unit, all at the same time and in a differentiated manner for each string (3; 3a-3e), so as to modulate the absorbed power thereof, and so as to obtain an overall photometric distribution of the LED light apparatus that derives from the combination of the light intensities emitted by said strings (3; 3a-3e), each modulated in an autonomous manner, characterised by: providing a plurality of matrices (P i), each of which representing the light intensity values obtained with the i-th group (5; 5a-5e) of primitive optics (6; 6a-6e); providing a one-dimensional matrix which represents the dimming values of the single channels of said strings (3; 3a-3e) of LEDs, with values comprised between 0 and 1, wherein the i-th value of is indicated with (b i); determining a matrix, which represents the light intensity values of the combination of all said strings (3; 3a-3e) of LEDs of the apparatus, in the following manner: F = ∑ i = 1 n b i ⋅ P i carrying out, by means of said control unit, the dimming of the current that powers the single channels of the strings (3; 3a-3e) of LEDs, by means of said matrix. providing a plurality of matrices (P i), each of which representing the light intensity values obtained with the i-th group (5; 5a-5e) of primitive optics (6; 6a-6e); providing a one-dimensional matrix which represents the dimming values of the single channels of said strings (3; 3a-3e) of LEDs, with values comprised between 0 and 1, wherein the i-th value of is indicated with (b i); determining a matrix, which represents the light intensity values of the combination of all said strings (3; 3a-3e) of LEDs of the apparatus, in the following manner: F = ∑ i = 1 n b i ⋅ P i carrying out, by means of said control unit, the dimming of the current that powers the single channels of the strings (3; 3a-3e) of LEDs, by means of said matrix.