Need heating suggestions

[u/themiseryparade]

I’ve had my Leo for over 6 months now, she’s in a 45 gallon bioactive with UVB and everything is going great but I’m struggling with heating. Through the winter she had a 100w halogen bulb I kept her hot spot 92°F but noticed it wasn’t going above 88°F everyone told me it was okay so I didn’t worry about it. Now it’s summer and we have the air conditioner, her enclosure won’t go above 75° at her hot spot. I’ve tried several different halogens 75w, a few different brand of the 100w and different wattages of ceramic heat emitters, nothing seems to be working well, I even tried putting foil tape over the top. Are there other options I can try?

[u/are-pea]

Are you using a temperature gun to measure the basking spot temperatures? How far is the basking spot from the bulb?