The answer to 'circuit breaker dimming lights' is that the issue is likely caused by a faulty or overloaded circuit breaker. When a circuit breaker is tripping and causing your lights to dim, it's a sign that the circuit is drawing more power than the breaker can handle. This can be due to too many devices or appliances on the same circuit, a short circuit, or a problem with the breaker itself.
To troubleshoot, first check the circuit breaker to see if it has tripped. If so, reset it. If the problem persists, try unplugging or turning off some of the devices on that circuit to reduce the load. If the lights still dim, you may have a short circuit or a faulty breaker that needs to be replaced by a professional electrician.