Actually I was prescribed them for my Bi-Polar disorder.

When winter left, I realized I had just what I needed.

I got those at www.fullspectrumsolutions.com

I think they cost $26.00....they have built in ballast so no mogul base needed either.

When a fan is blowing right on them, they are cool to the touch.

ANd it is a true 5500K, not a CRI equivalent.
Here to be exact:

http://www.fullspectrumsolutions.com...t_32_ctg_1.htm