Intro, Pics, and a question

Hi i am a small breeder from mexico and i have found this forum very helpful and fun! My question is, in the vivarium electronics thermostat how many uth can you connect to it?
Here are some pics of my small but growing collection (sorry for bad quality) :
They are a pastel female, mojave male, het pied male and female, and a big breeder normal female that i currently don't have any pics (pics are a little old)
http://tapatalk.com/mu/ad092742-df51-55bc.jpg
http://tapatalk.com/mu/ad092742-df63-46a9.jpg
http://tapatalk.com/mu/ad092742-df71-e730.jpg
http://tapatalk.com/mu/ad092742-df81-ed92.jpg

Thanks!

nice collection... Those thermostats list the wattage amounts they can handle on them I suggest finding out the amount of watts your uth's hold or get flex watt ten times cheaper easy to use and install. Also if your uth's are different sizes you can't plug them into the same thermostat because they will heat differently, and thats not safe. Also if you get flex watt use the same type, as in watts and size, or you will have to same problems as the heat tape