is it possible? has anyone tried?

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Homebox Grow Journal

What do you mean, using 120 bulbs?

Between buying so many bulbs, sockets and wiring it all up... you'd probably be better off with HID lighting.

Sure it's possible, I don't recall ever seeing someone try though. You would probably be better off using 26 watt bulbs for only a little more money. All you would really need is some plywood, a bunch of light sockets, and a lot of wiring and time.

I bet the build cost would be on par with what a 1000 watt MH/HPS system would run. Fluorescents aren't as efficient as HID lights, so you wouldn't have the same output strength. I think if you were a big do-it-yourselfer you would choose a bunch of 4ft t8's costing a little less in the end with the same output.