I bought mine from the tool chap at Malvern a few years back, I bought a mirror too. If mine has a light in I’ll be gobsmacked. I’m all excited now.Ozzie , check yours doesn't already have an led as I've had mine for years and didn't realise until recently it has an led - if the magnet has a hole in the centre then it likely has one and you need to remove a piece of paper that isolates the batteries before it will work.
Ozziedog,,,,,,,,goin for a look this arvo!