The answer to 'switch flickering lights' is that a flickering light switch is often caused by a loose connection or faulty switch. This can happen over time as the switch wears down or the electrical connections become loose. Symptoms include the light flickering, blinking, or turning on and off intermittently.
In many cases, this can be a simple DIY fix by replacing the light switch. However, if the flickering is accompanied by sparks, smoke, or other electrical issues, it's best to call a licensed electrician to diagnose and repair the problem safely.