Ok, and you think the HO 5.0 will be enough for the box turtle? I do have a 24 inch T8 bulb that I can add to the box turtle enclosure if needed.There is no way a couple of florescent tubes and a 65 watt basking bulb will be too bright for a russian. That is still only a fraction as bright as the sun. And your UV levels are very low right now so no danger from that. I know you'll be checking UV levels when the new bulb arrives and I think the combo will put you in your desired range of a UV index of 2-3.