They are 4 foot flourescent fictures.
Led ceiling light flashes.
Faulty light or fixture switch.
Additional possibilities with ceiling fan light strobe.
If it does you ve found the problem.
Common cause of ceiling fan light problems.
Modern dimmer switches create the dimming effect by switching the power supply.
A poor connection between the light or fixture switch and the bulb can cause flickering.
It only happens in the one fixture.
That may be all you need to do but if the bulb still flickers remove it and try another bulb.
The 4th flashes on an off like a strobe.
If you re able to verify that the ceiling fixture is the only one flickering get a ladder and try tightening the light bulb.
In 3 lights they are fine and bright.
This professional electrician should not make mistakes.
2019 01 29 2019 01 29 razorlux2018 blog.
They were normal florescents and i changed to 4 foot led bulbs.
I put two of the working lights in flashing fixture and they strobed as well.
They are all the same.
If your light is already flickering try toggling the switch on and off and see if this fixes the problem.
The most common cause of ceiling fan lights that strobe like this is due to wrong size light bulbs more specifically the light bulb size may be too large so i would check this first and make sure they are the recommended size.
Try gently wiggling the switch to see if this causes a flicker.
If the flickering bulb is a cfl try replacing it with an led or incandescent bulb.