Ok so i have the reptisun 10.0 in a 40 galling breeder, near the side where he is basking. I have bought a few different strength flood lights to see which one will work. The 100 w, which many people use, got his basking spot way over the correct temp, like 114, before I decided to change bulbs. I now have a 75 watt on a dimmer because that was even too high. I feel like i am sitting here constantly watching his temp and it keeps changing. Is there an easier way to regulate it. Do you guys mark your dimmers so you know where you have to set it at in the morning. I just feel frustrated, I was hoping to buy a bulb which would just give me the perfect temperature.