Don't drill holes in it. Just use https://www.walmart.com/ip/AcuRite-D...nitor/16888914. These are what I use and you don't need to drill any holes. I also use flexwatt and had AP install the LEDs for me so I didn't have to drill anything. I personally don't like drilling holes all over my new cages lol. Here is my 3 T10s on the left and 3 T8s on the right. Need to order another T8 for Luna and then focus on the 4 T25s later this year depending how fast the boas and retic grow.
https://ball-pythons.net/forums/cach...251a9ff5_h.jpg