chasv77answered grow question 5 years ago IMO, it depends on your setup.
2'x2' or smaller (single plant) you can go with a cheaper light like me. - - -> ViparSpectra 300W
If your area will be bigger and include multi plants, a better light will be required if you care about growth and harvest quality. To me, top vendors like Black Dog and Migro,
are for serious growers.