On Saturday, 24 November 2018 11:15:59 UTC, Dave Plowman (News) wrote:
In article ,
tabbypurr wrote:

I'd assume it's the ballast. Good time to go to LEDs. Under-run them & they last very well.


You'd need a lot of LEDs to give as uniform a looking light as a tube,
if that matters.

a neat pattern is usually fine.