A device for emitting light by means of LEDs of the continuous and pulsed type for aesthetic and therapeutic treatments, of the type comprising an electric power supply circuit which is connected to a respective external control and management unit and at least one LED controlled by the circuit and oriented toward a surface that is intended to face the skin of the patient in conditions for use, the device having a platelike shape； the at least one LED being arranged on a laminar accommodation element that is arranged at a constant distance from the surface intended to face the skin of the patient in conditions for use； the electric circuit comprising at least one apparatus for adjusting the electric power supply values of the at least one LED controlled by the control and management unit in order to set the power of the light beam emitted by the at least one LED.
