The answer to 'smoke detector dimming lights' is that a smoke detector can sometimes cause lights in the home to dim or flicker. This is typically due to the smoke detector drawing a significant amount of electrical current, which can affect the voltage supplied to other electrical devices and fixtures in the home.
Some common causes include a malfunctioning smoke detector, a problem with the home's electrical wiring or circuit breakers, or too many devices connected to the same circuit. Symptoms may include dimming or flickering lights, particularly when the smoke detector is activated or when other high-draw appliances are in use. Solutions can include replacing the smoke detector, upgrading the home's electrical system, or redistributing the electrical load across different circuits.