I use
http://www.lowes.com/lowes/lkn?actio...062&lpage=none
But the 90w version.
I cannot find it on their site, but it is in the store.
It runs at 3500K So it is probably one of the "whitest" lights you can get.
On a side note....I think that the DIY Lightbox should be in the DIY section...not the BP section.
people use light tents for more than just BP's