Yeah i figured the same thing so i am going with a rheostat. I feel confident that if i can keep ambient temps from 88-92 range. That is perfect my ranco thermostat will be coming and that will keep his belly temp at a perfect i feel like i am going to set it for 90~92 range. Still got to grab another hide squirt bottle and tiny little laser pointer like battery for my thermometer. Plus the essentials to wire the ranco. Thinking I'll have my snake by the end of this week.