The answer to 'electrical wiring flickering lights' is that flickering lights are often caused by loose or faulty electrical connections in the wiring. This can be due to a variety of issues, such as loose wire connections, outdated or damaged wiring, or problems with the electrical panel or circuit breakers.
Flickering lights can also be a sign of a more serious electrical problem, such as overloaded circuits, voltage fluctuations, or a problem with the home's main electrical service. If the flickering is accompanied by other electrical issues, such as dimming lights or frequent circuit breaker trips, it's important to have a professional electrician inspect the home's electrical system.