One of the lights I inherited is a Tizio with halogen light. It still works. I can save 10 euro per year by throwing away the lamp and buying the LED version. Seems wasteful though, so I just keep it working. I don't see it as obsolete.
The other one has an E27 fitting and fits a regular IKEA or Philips LED bulb, even the smart ones or the ones with temperature adjustments.
