Thorn 30w Arrowslim fluorescent fittings still in use

At the same museum. At one stage there quite a few of these in the museum but a lot have been replaced by LED since the last time I visited (almost 5 years ago). Nice to see these two hanging on! I'd really like to acquire an Arrowslim one day. A doctor's surgery near me has or had a few with very rare diffuser attachments to direct the light upwards/downwards!