My animals mean the world to me. When it comes to retics large even temp graidents are extremely important to me and of course my snakes. I have switched over 10 vision cages from ultratherm to the new THG heat tape. I am extreamly happy with the results! My biggest factor besides the less that 3degree difference between the top cage and the bottom cage on my rack is the even distribution of heat on each cage. I haven't even temperature gradient from the front of the cage to the back on every level. I've taken a lot of time to look at the connections on these math and it is unbelievably awesome. I feal very good about this new product and can reccomend it to anyone.