I bought four different sizes of the happy light. I used two of them as gifts. I have one in my office and one at home.
                    It is just as powerful as the large chunky light box I bought years ago for A LOT more money. I love starting my day with this light. I use it in my bathroom when I get ready and for an hour at the start of my day at work. Co Workers like my small desk happy light too.
                    My two daughters work inside on computers and it is a hit for them as well. I have done a lot of research on the use of therapeutic morning use of 10,000 lux light for improving mood and sleep. It really does make me feel better. I am excited because now I can travel with a smaller model.