A device for controlling a low level laser probe (20a) suitable for treating adult stem cells of a subject, said probe (20) having a plurality of light sources (24a . . . 24n) provided in a doming treatment surface (25). The device receives, stores and provides (11a, 11) status information from a subject and in accordance with the status information provided controls (12) the laser probe (20a) to transmit visible light (λ) having at least two various wavelengths (λ1 . . . λn) for stimulating adult stem cells of the subject, wherein at least one first light source (24a) being centrally positioned in the doming treatment surface (25) of the probe (20a) is adapted to transmit light of a first wavelength (λ1,) of a first particular intensity (I1) and the other light sources (24n) positioned around the first light source (24a) are adapted to transmit light of another higher wavelength (λn) and at least a second higher intensity (I2).
