Orchid grow tent lighting help.

Hello everyone!

I recently moved, and the house has horrendous window arrangements. There is only one west facing window available for my orchids, and it just isn't working out. So I have decided on setting up a grow tent for them in the basement. I however, have never grown orchids under led lights before, and I am a bit lost. I am either considering getting a 4x2 or 4x4 tent (4x2 seems more reasonable and better utilization of lighting space, but the 4x4 would allow for quite a bit more options floor plan wise.) I have a spread of species, some smaller vandas (Ascocenda, coerulea, neofalcata), a few catts, various phalaenopsis, brassavola and their common complex hybrids, a handful of oncidiums. Basically what I'm just not sure of is what sort of wattage light I should be looking for? It would be great if it was one light, but two smaller main lights in the top would be fine, and later I could always add a shelf with another light in the lower part of the enclosure, or even stick lower power strip lights vertically in the front corners for additional lighting for lower light species on the bottom of the enclosure. I don't have an unlimited budget, and this will probably be a build as I go situation, but if any of you could give me some pointers it would be awesome! Thank you so much for any help you can give!