The answer to 'smoke detector flickering lights' is that a flickering or blinking smoke detector is often caused by a low battery or an issue with the electrical connection. This can be a sign that the smoke detector needs maintenance or replacement.
Some common causes of a flickering smoke detector include a low battery, a loose connection, a faulty detector, or interference from other electrical devices. Symptoms may also include the detector beeping intermittently or the lights flashing rapidly. In most cases, the solution is to replace the battery or check the wiring connections. However, if the issue persists, it's best to call a professional electrician to diagnose and fix the problem.