Advance Transformer

I ask because all fluorescent bulbs up until CFL
had a magnetic or electronic ballast driving them, but that
ballast was fixed. The bulb was removeable and can be easily
replaced. The ballasts stay put and normally for lasts years or even decades!

Nowadays, throwing away or recycling a CFL bulb means you not only get
rid of the lamp (the glass tube) but also the ballast (in the thick white base) that drives
it, which may not be old, damaged, or in need of replacement.
It is a big waste.

(Years ago I used to work for Advance Transformer, a division of
Philips Lighting, hence the knowledge of ballasts
and fluorescent lighting engineering)