I hesitated before I decide to buy this lamp. First of all for the price, then it works or not? And then once the decision, which model to turn?
This lamp is effective, I can not describe the effect but every winter I start to feel bad when the time change and depression is truly feel in January (December because we are in the euphoria of the holidays).
From the first days I started to feel better say that I was less fatigued and had more motivation.
I left a week in Scotland with a special program that did not allow me to use my light (despite its great ease of use given its small size, battery model, and less intense blue light for entourage, there even different grips). At the moment I have not necessarily noticed the lack of light (but hey I was on vacation!) As soon against the following week when I picked up my pace ie 1h every morning I felt a great wave of motivation and energy.
I hope my review will was helpful (I forced myself to write my own because I am always happy to read that of other so ...)
Do not hesitate this is a worthwhile investment last but certainly beneficial!
A yes in fact I use to complement a dawn simulator