Odin checking out his new home.

[Craiga 01453]

we bought from a very well known reptile store, im thinking cause of the uth's low power they didn't think it would get too hot, we use the uth for the cool side right now.

I've never heard of a "low power" UTH not needing to be regulated.
The UTH is there strictly to provide a hot spot. It isn't there for ambient temps. So you want to have it regulated to keep a steady temp of around 90-92. Heat mats can spike to as high as 120, which could be fatal if your snake is above it. You also want to measure the temp of the glass where the UTH is located. Not the ambient temp above it, not the substrate above it, but the actual hottest spot there is. Snakes can, and will, burrow and dig themselves down to the actual surface, so it's important to get the measurement from there so that the animal can not burn itself.

It's also important to have the lamp regulated. Lamps just pump heat, without regulation, the lamp keeps pumping heat, and the enclosure temp can spike and be dangerous to the animal.

....sorry, just saw that your lamp was on a dimmer. Your ambient temps will be fine then. Unplug the UTH and get yourself a thermostat. The snake will be perfectly fine without the UTH for a while.