update on a light for depression

One of the twins is still struggling with depression and
the Doctor prescribed some kind of Light made by Apollo that is supposed to help with depression.He has only tried it for a week so we are not sure if it is going to help. Before u run out and buy one wait to hear from me because it cost $ 150 dollars and I am skeptical.
Update12/62010
Well so far he has not seen much of an improvement but we have 3 more weeks and we get a refund if it does not work.
[http://www.mikerblount/anxiety]