The present invention relates to a surface-mounted light and/or camera (1) for arrangement on a wall (5), in particular an inside wall of a machine, having a housing (10) with a front side area (12), a rear side area (14) and side walls (13), at least one illuminant (50) and/or at least one camera (60), with at least one recess (20) being provided in the rear side area (14), in which at least one fastening means (30) is arranged, wherein the fastening means (30) in the recess (20) forms a trap which is beveled towards the rear side area (14). The present invention also relates to a connecting pin (2) for fastening the surface-mounted light and/or camera (1) to a wall (5) and a surface-mounted light and/or surface-mounted camera fastening system (3).