Black lights help us see things that the human eye could never detect. Investigators use them to help solve crimes, and college students use them to make their felt posters look way cooler.
Well, there’s a sweet way to make your phone’s flashlight into a black light so you can use one whenever you want. Just follow these instructions and you’ll be living the black light dream.
Make sure to be careful where you use that new black light. You wouldn’t want to use it in a hotel room and ruin your vacation. You can’t unsee any of that.