Lighting

Ok that helps a bit. I am guessing it is a small low wattage pad? Like a 4w perhaps? Pads are generally controlled with a thermostat it is a separate unit altogether. They come in two basic types on/off that works exactly like most home thermostats. They are ok not stellar the better types are proportional they 'feather' or 'flutter' the power so it never runs maxed out or never truly all the way off. This keeps the temperature of the pad at a particular point rather than running high temp then off.

Lets measure some points specifically.

Move the substrate aside and measure directly over the heat pad.

Generally speaking a pad should never be not controlled by a thermostat. That said some of the modern small pads are so low heat they can be used with no stat as they rarely get much over mid 90ºS and running through a glass tank often the temp is in an acceptable range.

How are you measuring your temps?

You need to measure the air temp where it is not effected by the lamp or pad.

What is the temp in the room?

Temp in the room is set at 72-74 degrees.

The under the tank pad is just a small one that the previous snake owner gave me, it just plugs into the wall.

I am using a temp gun to measure the temp.

Move the substrate aside and measure directly over the heat pad.

Do you have the ability to measure the air temp in the enclosure?

Update. I got a temp gun (waiting for my thermostats to arrive). With the overhead lights, my poor snakes were baking at 100 degrees. I feel like a terrible mommy.

I changed to the red lights, have them dimmed, and now we're sitting comfortably at 90. My snakes thank you!

I'm new to this and still setting up but have some questions. I'm planning on getting blue daylight and red night time bulbs but don't know what wattages to get. I've got the UTH, thermostat, and temp gun already but don't know what to get wattage wise on bulbs. 36"L x 18"W x 18"H enclosure.

This is what I do. I have a 40g breeder and on the hot side I have a uth in a thermostat and above I have a 100w basking bulb that's on a rheostat and a timer and is usually about 2/3 up. On the cool side I have a 100w che on a rheostat and a thermostat and its usually about 1/2 to 2/3 up and is on 24/7. This setup gives me an ambient temp of 82-83 during the day with the cool hide being around 78 and a steady night temp of 75-78. His hot hide stays at 90 24/7. I have the top screen covered about 80% with foil tape to help with humidity and I have moss in the terrarium as well. Hope that helps