Vertical lights / 5gal buckets ... what's it called?

I recall reading a thread where the grow system uses 5gal double stacked buckets with vertical lights hanging between the plants, so the plant is always hit on 3 sides from 3 different lights ... been searching but can't find it. Anyone know the name for this method of growing?

i dont know much about growing marijuana, but i do know some about plants and i would say rather then doing that you could have something reflective under the pot to give the plant more light , rather then spending more money on lights lol:hippy: