lighting tropical overwinter t5

Hello! I recently got my first Brazilian Rain Tree and temperatures outside are beginning to get cold enough for me to have to bring it inside for winter. However, do to the placement of my apartment, I do not have a window that receives sun, so I will have to settle for indoor lighting. I have...

After weeks of trying to justify buying some of those super futuristic looking red/blue LEDs, I finally decided to go simple with a 4ft 4 bulb T5 HO fluorescent system. We just had a warm spell (>90F, 30C) Friday-Sunday, and now we're looking a a week of overcastness, with highs in the mid-60s...