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Why Do My Lights Flicker? 3 Reasons (And When to Worry)

Q

Flickering lights can feel like a haunted house problem—but in reality, they’re often a sign of an underlying electrical issue. Some are harmless and easy to fix, while others could point to more serious trouble that shouldn’t be ignored.

Loose Bulb or Faulty Fixture

The issue:
A bulb that isn’t screwed in tightly or a loose connection in the light fixture can cause flickering—especially if it happens in just one light.

What to do:
Turn off the light, wait for it to cool, and gently tighten the bulb. If it’s an LED bulb flickering in a dimmable fixture, it may not be compatible—try swapping it out.

When to worry:
If tightening or replacing the bulb doesn’t fix the problem, the issue could be in the socket or wiring behind the fixture.