The present invention is a modular pool skimmer faceplate cover with a pre-wired integrated underwater light. The faceplate cover of the present invention clips onto a faceplate of any pool skimmer inside a swimming pool. The faceplate cover is provided with a cavity below the faceplate cover's mouth that accommodates a light source element, and this light source element connects to a low-voltage power supply. The light source element can be a LED, and be located below or around the faceplate cover's mouth.