So far, things are looking pretty good.
As of right now, the grow light sits about 4" above the tallest seedling pots. A quick Internet search indicated one needs approx. 60W/sq ft of growth. I say approximately because that is for a Pot Plant (once again, they seem to be the only ones that do any scientific research in this stuff), and that may not apply as much to veggies. With the grow light about 4" above the top of the seedling pots, that puts a lighting footprint of 3.3 sq ft of illuminated area or 18 W/sq ft.
Comparing to images I took two days ago, it seems like I did have an inadequate amount of light. You can see there isn't much vertical growth in the seedling compared to 2 days ago, and the stem is darkening. I haven't noticed any indications of leaf burn or signs of stress but I will keep my eyes peeled.
The real indicator that I am on the right track is when their second leaves start to emerge. I will be observant for signs of stress.