Noisy Foglights

[crazyone64]

Something is going on with my fog lights, left or right they are making a loud buzzing sound. Not sure if these are stock or the prior owner installed them.
I've uploaded a video to help demonstrate the issue. Normal sound is around the 9 second mark but it doesn't last long.

View: https://youtube.com/shorts/BVRSYA_mifY?si=uqnL3_DqOlHRj6Lw

The connector looks fine, it's secure and the fact that i can reproduce the sound on either side has me stumped.
Any idea what might be happening?

 

[Noobz347]

It sounds like a cooling fan is dying.

 

[nickyb]

Check the fog light fluid.

 

[Noobz347]

But don't confuse it with blinker fluid.