switch from regular plant fluoros to T5?

[RandiRae]

You have helped tremendously! Thank you for thoroughly explaining the differences between the lights. I am looking at different t5 light banks. The only concern I have now is that I can't change the height of my enclosure (~18-20"). I'm hoping the t5's won't put off too much heat or light for my plants. Again, most of my plants are catt hybrids with a mini dendrobium here and a bulbo there. Any last recommendations or advice before I foot the expensive light bill???