LoreLisa, regarding more light, don't forget we are at the shortest day of the year this weekend. You will be getting more and more natural light as the days get longer now. In fact, it's possible that by March you'd need a sheer curtain or some sort of mesh to temper the bright sunlight. Once it's warm enough to take that orchid outside, May-ish ?? it might want only morning and late afternoon sun.
It may be that the plant will respond to the lengthening days from now into spring by putting up a bloom spike. Adding artificial light might push the window a little bit or it might stress the plant. I'd go with the natural light for now and see what happens. Or just turn on the artificial lights on cloudy days, but keep the same day/night schedule.
Mine definitely respond to day length as well as day/night temp changes by spiking, especially the Phals. They are pouting right now because our days have not been getting awfully warm lately. The Gulf cooled down pretty early this year due to 3 cold fronts with rain and cloudy days in November that we rarely see.
