Yes, I tried cheap corn light. Out put drop to half after 15 minutes. Light also points in wrong direction.
You either have to direct fans to cool the bulbs. Or use it only as supplementary side light.
I ended up bought Cree LED with cooling fan set for my seedling. It is really too powerful.
And yes, white light works really well during seedling and veg. Go for light color of 5,500 K or 6,500 k. I went with 5,500 and it is a bit more yellow.
Cheers