The answer to 'why is my light fixture flickering lights' is that there are several common causes, including loose or faulty electrical connections, a problem with the light bulb, or issues with the electrical wiring or circuit. Flickering lights can also be caused by problems with the light fixture itself, such as a failing ballast or other internal component.
If your light fixture is flickering, the first thing to check is the light bulb. Try replacing the bulb with a new one to see if that resolves the issue. If the flickering persists, then the problem is likely with the electrical connections or the fixture itself. You may need to tighten any loose connections or replace the fixture if it is malfunctioning. In some cases, the issue could be with the electrical wiring or circuit, which would require the help of a professional electrician.