Honestly, I took this with me overseas to the Baltics because I live there half the year. It's really gloomy and rainy there in the winter. This helped me get through the cold season with sanity. It's helped my moods :) Worth it.

I've been using this for a few months now, and I think it's having a positive effect. 30 to 60 minutes each morning, and sometimes 30 minutes midday. This winter has not been so tough with seasonal affective disorder. Someone recommended I use a therapy light in addition to extra vitamin D3. This was totally worth the money to try it out.

I'm a clinical psychologist, self-diagnosed with Seasonal Affective Disorder - the Winter Blues. In my hometown, not only do we have less light in the winter but we have A LOT of overcast days in the winter. Every year it kicks me in the butt - can't think, can't get motivated, can't sustain momentum, my productivity drops, I get moody and irritable, and I want to snack (and so put on weight). I've known about light therapy for some time, and finally (at my wife's urging) bought this unit. Within one day, I was feeling better, by the second day, I felt like my normal self. SAD is a real, scientifically documented condition that affects about 10% of the population, and it's biological. The light therapy is not simply a placebo effect - it changes how your brain functions and the kinds of hormones that are being released. The Circadian Optics Light works, and works well, because it is so bright - advertised at 10,000 lux - the recommended brightness for SAD. Most of the research on light therapy has been conducted with larger, fluorescent lights, and frankly I don't like the industrial look of them, the intrusive size, and i really don't like fluorescent light. This LED unit works just fine. I place about an arms length away off to one side, and then do whatever next to it (usually reading my Kindle) for about 45 minutes in the early morning. If i use it for less time, if find myself craving more light. I then do a booster session of 30 minutes or so in the afternoon (I'm using it as i write this) and my mood and clarity of thought return.

This unit is bright enough, not too big in size, is inexpensive, and because it's LED it uses very little electricity. It works, and it works well. It is well constructed, and is small and light enough that you could pack it in a suitcase for travel. If you've been wanting to try light therapy, I can recommend this unit as being very cost effective. It works so well I bought a second unit to use at the office.

I've recently started light therapy. I use a large light at home but I wanted something small for travel. This worked perfectly! I gave it 4 stars because it would be improved with a stand that would fold flat rather than a separate static "kickstand" that snaps in. I'd like to pack it flat but I'm afraid I'll break the snaps.

She uses it every morning and is seeing results. Small and lightweight, but bright.