I see, I tried keeping his basking spot closer to 90 but then his coolie was dropping to room temp which is 78°. So I felt increasing it to 92°-94° was acceptable since it is still within their range and allows his cool side to be 80°. Then I'll just return the halogen to home Depot tomorrow. I am just using the lamp until the flex watt I ordered comes in then I'm gonna install that as his primary heat source covering about 1/2 to 2/3 of his floor space, I am looking for a good thermostat to control that. At that point I'm going to switch his lighting to led.