Lux is one of my favorite tricks. It has worked perfectly. When I can't see the uv ink that well,
that is because the batteries need replaced or it needs a break for an hour as they said in the
tutorial. I could see the uv light well after I gave it a break. If you know the secret you might
think that it is obvious to others, but I've performed it to many people and they were baffled. This
is definitely going to be in my top 10. The price is fair. It has functioned without failure. Great
trick! Deserves 5 stars!