Review on UV Sensor Card - 2 Pack - Reptile Lamp UV Sensor Test Card for Bearded Dragons, Lizards, and Reptiles - UVB Fluorescent Lamp by Ashley Lanier

I liked the concept of these test cards. The test cards state that it can be used 5000 times. Not sure. Many other reviewers state that it can only be used 500 times, which sounds something like that. I tested an old UV lamp and it tested about 50nm. Installed a new UVB lamp which was bought brand new and also passed the test at about the same level. I found that very strange. Maybe I'm doing something wrong, or I bought a bad UV lamp, or these test charts aren't accurate at all. I think only time will tell if these test cards work or not. I left a new UVB lamp installed in my bearded dragon's body. He hasn't looked happy in a while so if he starts to perk up and look better then I'll know for sure that the UVB lamp is indeed new and these test charts are not accurate. I will update this review when my bearded dragon starts to look better or not.