A light guide system comprises a first element (201) that comprises a first reflective surface (203) for reflecting at least a part of a first portion of light emitted by a light source (202) and an opening (204) for constituting a passage for a second portion of the light. The light guide system further comprises one or more second elements (205a-205c) each comprising a second reflective surface (206a-206c) and being shaped to fit with the opening of the first element so that the second element is attachable to the first element for arranging the second reflective surface to reflect at least a part of the second portion of the light to a spatial area where the first portion of the light is directed to. Different light distribution patterns can be obtained by using different second elements together with the first element.