The invention provides a metal-based support (100) for a lighting element (200), wherein the lighting element (200) comprises a light source support (300) and a light source (10) functionally coupled to the light source support (300), wherein the metal-based support (100) comprises a metal body (140) and a fixation element (400) for fixating the light source support (300) to the metal-based support (100), wherein at least part of the fixation element (400) is part of the metal body (140), wherein the fixation element (400) comprises a central part (410) which is configurable in a first configuration and in a second configuration, different from the first configuration, wherein a change from one configuration to the other can be effected by applying a force on the central part (410), wherein the fixation element (400) comprises two protruding elements (420) configured extending from the central part (410) in both configurations of the central part (410), wherein terminal parts (421) of the respective protruding elements (420) have a first mutual distance (d1) in the first configuration of the central part (410) and a second mutual distance (d2) in the second configuration of the central part (410), wherein the first mutual distance (d1) is larger than the second mutual distance (d2), and wherein the fixation element (400) is configured to receive the light source support (300) in the first configuration and to fixate the light source support (300) to the metal-based support (100) in the second configuration.