Hey guys, I've got a Russian who's about 3 years old I believe. I'll have had him a year in November. I got him out of a pretty bad situation, he was in a small tub, the previous owners went outside, dug up some grass and dirt and put it in there. His diet consisted of green leaf lettuce and regular strawberries, no heat or UVB, but they did get him outside regularly during the summer. When I first got him I just knew he needed better, but I was uneducated and he had a mercury vapor bulb. I built him an 8ft by 2ft enclosure as soon as I got him, and he's got about 6-8 inches of soil that he loves to burrow in. I took him to the vet as soon as I got him and everything looked okay thankfully. Anyway, to my point. I'm only able to get him outside 2 or 3 times a week from late may- mid august (depends on the year, here in east TN though) so I definitely want to get him a UVB for the winter. I know T5 HO tube. However, I'm not sure what wattage. I'm planning on getting the Solarmeter 6.5 before I have to end his outside days, what readings should I be looking for from the UVB so I know how high to place it? Thank you guys! This site has been a savior for me and the little one.