Temps should be going below 80?They need constant heat, Alex means if you’re going to use an incandescent floodlight, to limit the time they bask under it. Their enclosure shouldn’t be going below 80 ideally.
I think you’ll find it easier switching to ceramics for your heat and led for you ambient lighting. Again all in more detail on my first reply
This is wrong. Day and night the temp should be 84.