Sorry I'm not seeing this until just now...I use the cheapest with the highest lumins, which at a regular store is around 2000 maybe? or 1600, I don't even go by wattage, for these CFL lights, just the lumins, and if you can get "daylight" or full spectrum...either way, they'll respond to whatever light you give them!! Its just more efficient to have the higher lumin bulbs!
I love your shelf! Looks great!!! You're becoming a plant mommy! And I like that your hubby is sharing in the fun, looking for planters and stands!