I’ve put a few of the British General tubes from Screwfix in our garage and utility room; swap the tube, swap the starter for the included “dummy” starter, job done. They come on instantly, don’t flicker, are silent and are brighter than the supposedly equivalent tubes they replaced. They’re only about £15 or thereabouts too.
In the garage they’re brilliant, I’ve clonked one of them with a ladder that would have smashed the old tube to bits but being plastic the LED one didn’t care.
The only teeny tiny down side is that being plastic they’re not as rigid, so the ones I have aren’t quite straight (even before I clonked one of them); this is only a problem if it doesn’t have a diffuser over it though, so for a kitchen shouldn’t be a problem.