Abstract: An apparatus for treating the skin of a patient by means of light therapy. The apparatus includes a base, a light emitting surface, moving means, and control means. The light emitting surface includes an array of light emitting sources, each source being configured for emitting different rays of light at different wavelengths. The moving means are used for controllably and remotely moving the light emitting surface with respect of the base along a predetermined path and at a predetermined rate. The control means are used for controlling the light emitting sources so that each source emits a given ray of light at a given wavelength, and for controlling the moving means so that the light emitting surface is moved to treat the skin of a patient. Also described is an assembly including the apparatus, as well as a method of operating the same.