This is my three tier light cart by Gardener's that I use for my Phalaenopsis orchids. It has worked fairly well although I honestly had better luck growing under six 48" tubes, half cool white and half plant fourescent bulbs in years past then under these higher intensity bulbs. The ability of raising and lowering the lights, the built-in water bases and that it is on rollers is amazing.

I'd recommend it. Gardener's actually has 1 level, two level and three level models. If I had to do it again, I'd get the two level - as its the same height but there's more room for the inflorescences. Here, I have to kinda stick them out the side. More photos soon.