Updated by Ryan
The lifetime of the light tube in your Uvlizer is over 5,000 hours. That means even if you operate it for one hour every day, it should last well over a decade.
The UV output of all light tubes will very slowly decrease over time due to the build-up of residue inside the tube. However, industry experts say that you can operate a light tube up to 9,000 hours before you need to replace it due to diminished UV output.
The UVC light tube contains a small amount of mercury just as all fluorescent light tubes do. That means it should be disposed of carefully in the same way that you would dispose of any fluorescent bulb. If the light tube is accidentally broken, do not use a vacuum cleaner. Sweep the broken pieces and any residue into a sealable bag or container and dispose of them properly.