I turned on my bathroom light this evening and was surprised to note that it only gave off a very feeble light, barely illuminating the room. On inspection, it looked like only the ends closest to the connection were giving off any light at all.
I presumed this was a bulb issue, so I changed it and was surprised to find that the new bulb behaved identically. So it seems this is an electrical fault.
The light fitting takes 4 pin fluorescent bulbs, like this: https://www.amazon.co.uk/Philips-PL-Q-GR10Q-Compact-Lamp/dp/B000ONNOH4
The issue only affects the bathroom light, and no others in the house. I have not noticed any other electrical faults, nor am I aware of anything that might have caused a wire to break or become lose anywhere.
What might have caused this? Is it something I can fix, or do I need an electrician? Is it urgent, in the sense of it being a safety hazard?