This afternoon, I started my research on SAD lightbox, in preparation of my meeting with my nurse practitioner, on Thursday morning. Sadly, I feel like, I have dived into the deep end of the pool, without knowing, how to swim. Can someone give me, a primer, on what I should be looking for, in a SAD lightbox? Am wondering, how do I find a brick and mortar store, close to me, so I don't have to order over the internet, as my financial tools are limited.