Thorn PP1X70/75W vivatronic

I fitted this light in my uncals kitchen (which I stole on an urbex) around 1998 it has faithfully worked ever since it does however munch through a tube! The tube in this I noticed today (which is a rather lush GB GE 75W/840 has a full length flicker and is about to EOL. They do use this a lot though kitchen is always dark so this is on most of them time. I was about 13 when I fitted this.