On 01/01/2021 16:18, NY wrote:
If a fluorescent tube (about 5-6 feet long, one of a pair in a fitting)
fails to strike or takes many attempts before striking (and then remains
on perfectly), is that likely to be a failed tube or a failed starter?
Are starters labelled with a code which makes sure you buy a replacement
which is compatible? Do you need a different starter depending on the
length of tube?

We have several fittings in the garage which are reluctant to start (one
or both tubes in the pair) and I want the cheapest solution to provide
*some* light, even if an array of LED GU10s or of CFL bayonet bulbs may
be better or cheaper to run.

Swap the starters around to prove they are at fault?

Actually just removing them often fires the tube instantly (on a one
shot basis) if the starter is faulty.

--
Adam