Ultratherms are very high quality products, but they really aren't going to be ideal on a T8. You really have 2 options. Flexwatt or THG Heat tape. When ordering the cage from AP if you select the flexwatt heat tape option they will send you 2 feet of 11inch flexwatt heat tape wired up and ready to be plugged into your thermostat, alternatively you can order THG heat tape from reptile basics and have them wire it for you for no additional charge. THG heat tape is a higher quality product vs flexwatt, but both will serve you well.