If you have a "lux" model you will have xenon lamps.
You can change them at home, it's relatively easy, switch of the ignition and remove the key, by the time you get the bonnet open and a headlamp out it will be fine.
FYI the Xenon lamps run at only 70v-80v, however an initial "strike" voltage of many thousands of volts if used to start them, and if they go out whilst in use, the ballast will try to re-strike them. This is why you shouldn't remove the bulbs with power applied.
And yes Xenon lamps start to dim from day 1 - so replacing old ones usually gives a great improvement. I would recommend standard or upgrade Philips or Osram lamps from
www.powerbulbs.com. Avoid any and all cheap lamps on Amazon/E-bay, do not go above 5000k colour temperature as it just makes them difficult to see things by.