You can arrange your plants on your plant stand to be either closer or farther from the light, depending on their needs. For example, dead center for high light, and toward the ends of the bulbs or on a lower shelf for lower light needs. As far as needing to be cool, those plants must of course be taken off the plant stand and put in a cooler situation. Light, however, is the most important factor in a plant's growth. So giving a plant the coolness it needs without adequate light will slowly kill it for sure.

For example, in my south window I have the cattleyas right up against the glass to get as much light as possible. Behind them are the phals, which need a lot less light. This is a warm window. The dendrobium nobiles are in my west window, which gets very bright light but is also very cool. This suits the den nobiles just fine as that's what they like.

You will have to do some research on your plants. I was getting so confused about what plant needed what that I started keeping culture cards on all my plants. I have large index cards, one for each type of plant, and I list the type of plant at the top, and then I have separate topics for light, temperature, water, fertilizer, repotting (includes media), bloom time, etc. As I come across new information on a plant I jot it down on the card. Now I have come across a lot of conflicting information. I try one way, and if that doesn't work I try the other.

People in each geographical area grow in different ways, so when you get information on a plant, you must consider the source. What works for a grower in Florida or on the west coast might not work for you in upstate New York. And growing in a greenhouse is far different than growing under lights or on windowsills.

Then I went a step further and made a card for each individual plant. On that across the top I jot down the name, color, parents, where I bought it, how many bulbs it had, etc. Then I have columns for date of repotting, type of pot and/or media, treatment for insects, date of new shoots or spikes, date of bloom, end of bloom.

This may seem like a lot of work, but I find it pleasurable, and it has helped me become a much better grower.