Every autumn I bring plants from outside, such as potted orchids, kalanchoe, Christmas cacti and foliage plants. Window lights and conventional incandescent or compact fluorescent lamps worked fine. This year, in October, when the first frosts were predicted, I brought in a 4 foot tall potted gardenia that I had bought in the summer, counting on seasonal use only. It started shedding leaves fairly soon after being indoors. I ordered 2 of these 32 watt compact fluorescent lamps as a test. Theโฆ