Also, having that light on to simulate day/night time isn't necessary either, just preference(so long as your geckos tank is already receiving indirect visible sunlight, if it isn't, I would recommend the lighting schedule). Forgot to mention, if you are planning to give your gecko light, don't go with a powerful basking light or something(can hurt eyes(as Leo's are crepuscular meaning they hang out at night and dawn)severely in some cases while dim room lights rarely, if ever hurt the eyes of a gecko). A dim, yellowish room light should do, I have one from Ikea and I have crickets and supers in my room which are both nocturnal, they seem to be minimally, if at all disturbed when I turn it on.