I suffered very badly when I lived back NE with SAD.

I was not diagnosed as BP yet, just severe chronic depression, GAD, SAD, etc.

I use to go to tanning salons to make me feel better and it worked.

I heard about the special lights, but couldn't afford one.

Now being diagnosed and living in AZ, my P-doc still says that even in the winter if you can call it winter here , I should get outside for at least 15-20 a day for sun, or just a walk in the sun.

So, all I can say is that light of any type helps.................
Nikko