Luminaire, in particular LED spotlight, comprising: a lamp head, a lamp arm, a pivot joint for the rotationally movable connection of the lamp head to the lamp arm, so that the lamp head can be aligned with respect to the lamp arm via a first and a second axis of rotation (5, 6) of the pivot joint, and a fixing element configured to be moved between a release position in which the lamp head can be aligned via the axes of rotation (5, 6) and a locking position in which the axes of rotation (5, 6) are locked, further comprising: a first locking element movable between a first release position in which the lamp head can be aligned via the first axis of rotation and a first locking position in which the first axis of rotation is locked, and a second locking element movable between a second release position in which the lamp head can be aligned via the second axis of rotation and a second locking position in which the second axis of rotation is locked, wherein the fixing element interacts with at least one of the locking elements (30, 40) so as to move both locking elements (30, 40) simultaneously between their release positions and their locking positions, characterized in that the first locking element is a tensioning element which can be moved from the first release position into the first locking position by tensioning the tensioning element by means of the fixing element. a lamp head, a lamp arm, a pivot joint for the rotationally movable connection of the lamp head to the lamp arm, so that the lamp head can be aligned with respect to the lamp arm via a first and a second axis of rotation (5, 6) of the pivot joint, and a fixing element configured to be moved between a release position in which the lamp head can be aligned via the axes of rotation (5, 6) and a locking position in which the axes of rotation (5, 6) are locked, further comprising: a first locking element movable between a first release position in which the lamp head can be aligned via the first axis of rotation and a first locking position in which the first axis of rotation is locked, and a second locking element movable between a second release position in which the lamp head can be aligned via the second axis of rotation and a second locking position in which the second axis of rotation is locked, wherein the fixing element interacts with at least one of the locking elements (30, 40) so as to move both locking elements (30, 40) simultaneously between their release positions and their locking positions, a first locking element movable between a first release position in which the lamp head can be aligned via the first axis of rotation and a first locking position in which the first axis of rotation is locked, and a second locking element movable between a second release position in which the lamp head can be aligned via the second axis of rotation and a second locking position in which the second axis of rotation is locked, wherein the fixing element interacts with at least one of the locking elements (30, 40) so as to move both locking elements (30, 40) simultaneously between their release positions and their locking positions, characterized in that the first locking element is a tensioning element which can be moved from the first release position into the first locking position by tensioning the tensioning element by means of the fixing element.