I have a lamp dome that came from one of those "all-in-one" kits from Petco (don't worry, I don't use anything else from the kit). I have a Grreat Choice® Daytime Incandescent Health Bulb. For some reason, it is not heating the basking spot to the correct temperature! I have a brand new baby beardie, and I know the temp is supposed to be at about 105 degrees, but the bulb won't heat up past 88 degrees!! What do I need to change? My bulb, or lamp? Btw the lamp dome is a 60 watt lamp.