A surveillance camera has a positioning base, a mounting base, a globe and a camera assembly. The positioning base is attached to a ceiling or a wall or the like. The mounting base may latch to or detach from the positioning base and has a tapered sidewall, a panel recess formed in the sidewall and an illuminator mounted in the panel recess. The illuminator illuminates an area of interest and has multiple light-emitting diodes (LEDs) mounted on a substrate. The LEDs provide a wider field of illumination and more intense light. The camera assembly is attached pivotally to the mounting base. Therefore, the surveillance camera can get clearer and more complete images.