Circadian lighting device.

Circadian lighting device configured to operate in two modes a first mode of operation that emits light in the visible spectrum; and a second operating mode that eliminates a band of the visible spectrum; further comprising a drive means configured to switch between the first mode and the second operating mode depending on the orders received from a first interaction means and to modify the intensity of light emitted according to the orders received from second means interaction. # Preferably, in the second operating mode the spectrum band formed by wavelengths from 450 to 480nm is removed.