Where to look for light boxes used in light-box therapy? Have your asked your physician to point you in a helpful direction? Personally, I neither evaluate nor recommend specific products or treatments. However, I do know that Amazon.com carries a whole range of light therapy boxes. And studies have shown light therapy to be helpful in SAD as well as for bipolar depression and depressions that have been very treatment resistance. Nothing works for every brain because every brain on the planet is different. But the answer is always “no” unless you have tried something for your brain.