Hi
@SoberParrots energy bulbs don't tend to put out much heat . As for for wattage I keep all sizes 35,50 ,75,100 . Iwas using a 75 at the start of the year then down to a 35 then no basking as we had record temps . Also a dimmable thermo is a good investment. My personal favourite is an arcadia
View attachment 308361but lots of members just use regular incandescent bulbs really up to preferences. I suppose as long as you get basking temp and your cham is healthy then hey