What Causes Lights to Flicker? We're talking about simply switching out your lightbulb, because a flickering light often indicates that the bulb itself (not the lamp or your home's entire electrical system) is nearing the end of its life span.

What does it mean when the lights are flickering?

Flickering or blinking lights are usually caused by one of the following: Problem with the bulb (not in tight enough, lightbulbs are incompatible with your dimmers) Loose light plug. Faulty switch or dimmer.

Should I worry about flickering lights?

Minor changes in your home's voltage are normal, but flickering lights may indicate abnormal fluctuations. Abrupt changes in voltage from low to high can damage electronics and in rare cases cause an electrical fire. ... An electrician will be able to isolate the source of the voltage instability and fix the problem.