I recently got a silver philodendron for my office. I have a cubicle with no natural light, just overhead ceiling fluorescent lights. I have an under-cabinet light. I put in a 32 watt full spectrum tube in this fixture. The light is about 20 inches from my desktop. I put the philodendron under the light and it seems that the leaves are starting to look washed out. I'm assuming that the light is too strong for the plant. Also, I have my peace lily under the light. Is this light too bright for these plants?? How far away from the cabinet light should they be?