^^ Agreed.

Not just that, but people forget you don't need as much space in veg, especially the early stages. You won't need the whole cabinet for plants in veg until they're 3 weeks in, at least. Even after you go from 20 oz. cups to 6" pots...you can easily get four 6" pots with fairly bushy young plants into a 15" x 15" area. That only takes four 23w bulbs to cover well. IMO, you can go to at least 21 days of veg--plants around 6-8" high--with one clamp light with two Y-adapters and 4 23/26w bulbs. You save some $$ and stress issues by only using as much light as you need in the early stages