The invention relates to a method for positioning a light-shaping member, for example a reflector (1), relative to at least one light source (2), comprising the following steps: a) fitting the at least one light source (2) on a carrier plate (3); b) measuring the position of the at least one light source (2) on the carrier plate (3); c) fitting one or preferably more reference positions (4) on the carrier plate (3), wherein the position of the at least one reference position (4) is dependent on the position of the at least one light source (2); d) referencing, i.e. aligning, the light-shaping member to/with the reference position(s) (4) on the carrier plate (3); and e) securing the light-shaping member on the carrier plate (3) or in relation to the carrier plate