The invention relates to a lighting fixture for mounting on a wall (1), having a lighting element (2) for generating light, a mounting element (4) for fixing to the wall (1), and a supporting element (8) on which the lighting element is arranged and which is designed to be held on the mounting element (4). The supporting element (8) has first electric contacting elements (10) for supplying power to the lighting element (2), and the mounting element (4) has second electric contacting elements (12) which are designed for electrically connecting to the first electric contacting elements (10). The lighting fixture is designed such that the supporting element (8) can be brought from a first position (P1) into an operating position (P2) solely by means of a sliding movement relative to the mounting element (4) along a direction (R), wherein the first electric contacting elements (10) are not electrically connected to the second electric contacting elements (12) in the first position, and in the second position the first electric contacting elements (10) are electrically connected to the second electric contacting elements (12) and moreover the supporting element (8) is held on the mounting element (4).