I use a Light Dimmer from Lowes on a UTH and a Thermistat for the Ambient heat source (CHE/HEAT LAMP/RHP ECT..) Thats a total of $15 dimmer & $30 Tstat shipped. $45-$50.
https://m.lowes.com/pd/Lutron-Creden...Dimmer/4462387
https://www.amazon.com/Hydrofarm-MTP.../dp/B000NZZG3S
and here is how to set it all up bro : https://ball-pythons.net/forums/show...-With-Pictures!