Wal-mart sells a 'sun light' line of bulbs by Lights Of America.

Theres several different wattages and configurations to the bulbs. The color temps are 6400k for smaller ones, 6700k for the 35 watts models. Don't stress what looks to be low lumens compared to what folks say ya need per sq.foot. Being able to get the bulbs ultra close without burning the plant negates that issue. I've seen some vegitative development that looked to me to be a plant growing faster than the cells could keep up with!

Just be mindful to switch to a warmer bulb (red spectrum) before your plants out grow your cabinet.