I already have a light box that I use every day when he does more night to sleep better. For two years. And it works. I no longer suffer from winter blues. (Not depression, it's light blues, beyond comparison). Its disadvantage: the volume. It is as big as an A3 sheet. It is bulky and so I'm too lazy to storage. In addition to its cable is tiny so you have a big extension cord and it greatly encumbers the shot.
This model is absolutely brilliant for that. When I received it, I could not see how he was able to do the same job as large because he was little. But it is also much more powerful. For the other white light 10,000 Lux, for it is is 200 lux but the same efficiency as 10,000 lux of white light. And so it can fit on a single battery and therefore wireless on it!
As usual with my lamp, I found small startup inconvenience (this is indicated in the manual: headaches, nausea etc ...) but do not let go of it happening fast enough.
The battery charges pretty fast (I did not notice but a few hours, about 3). It has a fairly long life because I already serve for an hour without a drop of intensity.
Product Description: This is a small package which is less than 15x15, plastic square that has really beefy air with a Start button on the side (which also makes it possible to lock to prevent accidental operation when traveling, a security because it can heat a little). Two front buttons to adjust the intensity in 5 levels (honestly good luck if you test the strongest, it tears, I think this is to use a step further, especially in the beginning it is better to take it easy). An LED indicates the load and another period of use to control the time (ideally 20 to 30 minutes). There is a small retractable feet behind and below an eraser to ask it without damaging it.
There is a small manual that specifies the correct ways to use according to its circadian rhythm and obviously the wall charger.
There is also a padded travel house since this object is used to manage jetlag.
Personally I love the minimum space and being able to be used unplugged. Philips announces an average life of 7 years which seems pretty good. And as always at home, the product has an impeccable finish and the packaging is perfect.
After one day, I had a good night which is extremely rare (sort three times in the year because I am insomniac severe linking with the above pathology). I had my doubts that it works as well as my usual juggernaut but the effect seems even stronger.
To see in a few weeks with more perspective but for now, I am convinced.
Just pay attention to the point: do not look at the lamp, it hurts the eyes and it is not intended for that. And also when you have trouble sleeping, never in the hours before bedtime, it's exciting (much like computer monitors or TVs).