Added Full Spectrum Florescent Lighting

I had an old plant box with full spectrum florescent lighting in it. I decided to take it apart and install it into my orchid stand. Originally I just wanted it installed just so I can look at the orchids under normal lighting. Although the orchids are doing well under just the LEDs I read on the web that some green part of spectrum do contribute to better root growth. Well, I thought I'd try it out. I am having root problems but I think this is because of the cold temperatures of winter. I ordered heat mats but they haven't arrived yet.