I use lights here as well. My Christmas cactus decided to bloom again! Love the colorful blooms during the dreary season. I will be looking for these plants when I go to the valley again. They have some nice nurserys down below in the warmer country. I am going to get some blueberry plants that will live in pots. Last years grasshopper invasion has me worried about putting them out in the garden space. Everything was devoured last year. No canning at all! :( The lights are very inexpensive to operate as well. I hung white/black plastic in my winter grow area. Supposedly distributes light better than foil or mylar. Thanks for coming by.