Do LED lights flicker when burning out?
It will get dimmer and off-color if the LEDs burn out. The traffic lights that burn out are usually the power controllers. Most consumer LEDs have a power controller built into them.
Can a bad light switch cause flickering lights?
Faulty Light or Fixture Switch
A poor connection between the light or fixture switch and the bulb can cause flickering. Try gently wiggling the switch to see if this causes a flicker.