Wearable lighting device comprising: a main body fixable to a protective pair of glasses or eye shield; a light source for emitting a beam of light, the light source being supported by the main body; and electric power supply means for the light source; wherein: the light source comprises a plurality of lighting elements, each of which emits light with its own emission spectrum; each lighting element emits light in the visible and/or ultraviolet band of light in its own main frequency band; the main frequency band of at least one lighting element is at least partly included in the visible band; the emission spectrum of the light emitted by each lighting element in its own main frequency band, is different from the emission spectrum of the light emitted by each of the other lighting elements, in the respective main frequency band; the lighting device also comprises a control unit connected to the electric power supply means and to the lighting elements, for controlling the switching on of the lighting elements; and the control unit and/or the electric power supply means are configured in such a way as to allow the selective switching on of each lighting element for emitting different beams of light; characterized in that the light source comprises: a first lighting element which emits white-coloured visible light; a second lighting element which emits red- and/or orange-coloured visible light; a third lighting element which emits violet-coloured visible light and/or ultraviolet light; and a fourth lighting element which emits visible violet-coloured light and/or ultraviolet light, wherein the third lighting element and the fourth lighting element have different main frequency bands. a main body fixable to a protective pair of glasses or eye shield; a light source for emitting a beam of light, the light source being supported by the main body; and electric power supply means for the light source; the light source comprises a plurality of lighting elements, each of which emits light with its own emission spectrum; each lighting element emits light in the visible and/or ultraviolet band of light in its own main frequency band; the main frequency band of at least one lighting element is at least partly included in the visible band; the emission spectrum of the light emitted by each lighting element in its own main frequency band, is different from the emission spectrum of the light emitted by each of the other lighting elements, in the respective main frequency band; the lighting device also comprises a control unit connected to the electric power supply means and to the lighting elements, for controlling the switching on of the lighting elements; and the control unit and/or the electric power supply means are configured in such a way as to allow the selective switching on of each lighting element for emitting different beams of light; a first lighting element which emits white-coloured visible light; a second lighting element which emits red- and/or orange-coloured visible light; a third lighting element which emits violet-coloured visible light and/or ultraviolet light; and a fourth lighting element which emits visible violet-coloured light and/or ultraviolet light, wherein the third lighting element and the fourth lighting element have different main frequency bands.