On Saturday, 30 May 2020 20:44:05 UTC+1, Jayney09 wrote:

Hi, I have a switch in my kitchen which has a red light on it. This is the
power switch for my fridge freezer. I noticed the red light on switch is
slightly flickering. Tried to google and all I could find was that the neon
bulb might be going. Just wondered if anyone knows what it could be. Many
thanks.

Neons do that. They fail eventually - it makes zero difference to safety or operation.