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A 4x8 tent with these types of lights would rage around 1000 dollars unless buying stuff used. I don't have inline ventilation and those aren't cheap, so the sky is the limit with this stuff. If you want cheapest price with highest efficiency, I'd go 4x4 tent with a 250 watt panel, could probably get yourself rocking with something decent for around a 500 dollar investment. Can go smaller than that but then efficiency becomes much lower. A proper starting tent in my opinion is a 4x4 minimum size. They make smaller but I'd stay away from smaller for full size cannabis cultivation.

Ok. I'll look into that. All indoor?

Yeah

Ok. What's the yield?

Depends on the growers experience and the plant genetics. A set up like this can yield pounds, or mere ounces. It really comes down to grower experience because there's a lot of variables involved with cultivating cannabis indoors.