The answer to 'why is my electrical panel flickering lights' is that flickering lights are often a sign of an issue with your home's electrical system. This can be caused by a variety of problems, including loose connections, overloaded circuits, or issues with the main electrical panel.
Flickering lights can be a symptom of an underlying problem that needs to be addressed. It's important to investigate the cause to prevent further damage or safety issues. While some minor troubleshooting can be done DIY, it's generally best to have a licensed electrician inspect the panel and electrical system to diagnose and resolve the issue.