Got a UTH on a stat which keeps a pretty constant 86-88F floor temp under the hot hide day and night... Air temps at the moment are fluctuating down to 70 on the cool side and 80 on the warm side... temps directly under the lamp (which has a guard on it)are obviously hotter (90) during the day ... I'm thinking that at the mo while the weather is cold and the bulb needs to be on at night to keep temps up it might be better to have a red bulb? Or am I getting this wrong and it's ok as long as she has the basking spot heated by the UTH at the right temp? Humidity is good (between 45 and 55% generally) - tank is plastic, i spray when needed and have digital hygrometer to measure.