Fluorescent light starts OK but goes dim and flickering after an hour or so

David · 2023-06-29T11:31:45+00:00

I tried looking this up on line but not much joy.I thought that once the tube had "struck" and was fully lit then there was no further need for a starter - and if the ballast was faulty then the starter wouldn't work.Does a faulty ballast seem a reasonable diagnosis?CheersDave R

Fluorescent light starts OK but goes dim and flickering after an hour or so - ballast?

Jun 29, 2023 Last reply: 3 years ago 20 Replies

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I remember the dodgy Woolies short tube fittings held onto a cylindrical piece with a normal bayonet connector. I never did figure out how these worked as they did not have a choke or a capacitor that I could see. They had the unfortunate problem of not working below about 5 decc, So in my shed they flickered, and the only fix was to plug in a hairdryer and play it on the tubes for a couple of minutes. Must have been made for hot countries. I liked them cos they did not have that awful strobe effect you could get with ordinary fittings. Brian