Interesting way you have the lights arranged. I have the same racks and 2 of them are in a south window with Dens and catts and supplemental lighting on the lower shelves. One other rack is in a west window with supplemental lighting on the lower racks for a couple of baby catts. The upper shelves I keep my low light paphs and phals. I also have a very large rack in a north window with supplemental lighting for catts. As far as the type of lights I use plant lights in shop light fixtures on auto timers, on for 14hrs a day.