Not sure about tax write off. I have a small light box. It is portable and opens like a book. It was recommended by my doctor, but I'm not sure if it worked. I was very depressed at the time and my doc said that I literally could not use it too much because I was so depressed. I'm not sure if it helped. One good thing was I could just sit up in bed and use it. It was something positive I could do for myself with a minimum of effort.

Living in WI in the winter when it gets dark so early light therapy works out alittle sometimes. I still need something else to do and if it wasn't for my dog I don't think I can make it through the winter.