I have no idea what the blacklight mode is for, but it’s a feature.
You can check if banknotes/driving licences* are counterfeit, and if you turn the lights off in your bathroom and then look at the toilet with the blacklight, you’ll be more thorough when you clean it!
Just realised, you could use it in hotels as well :-(
- We have a desk mounted one at work as part of security checks on driver’s licences.
Marco Inaros is just getting started.