Get a thermostat, place the probe above the unfertank heater, turn the thermostat down to 90. You need to have all your heating sources controlled, to dial in safe temperatures for the health of your snake.
I have ordered a thermostat, and replaced the 75 w light with a 50 w and unplugged UTH. I’m sure the 50w won’t burn him, and will keep him warm-ish until the thermostat comes. Thankyou everyone for your help