Use this side is very simple: to electricity appliance is plugged, you press the start / stop button, and there was light. You can adjust the intensity and duration. Level 5 almost hurts the eyes ... but it gives a dual use in this light therapy device operating with LED technology: this makes it a perfect lamp illuminating the entire room XD.
According to the leaflet, it should be used 20 to 30 minutes per day (more can be done without damage, but should not see higher efficiency). If a person is "evening" (= having trouble getting up in the morning), it is advisable to use the lamp in the morning. If it is morning, evening or afternoon. If you are stressed / tired, rather the afternoon. Before working for a living (and not wishing to drag this huge lamp with me in the office), I use the evening dining and surfing the Internet.
It is advisable to direct the lamp a certain way, depending on how one stands. Frankly, given the size of the beast, I do not see what would change here, so I do not hold account. I put the lamp next to me (to worn electrical wire ... which should not be more than 3-4 meters I think) and basta.
Side effects, honestly I can not say it. Provided not to level 5, the brightness remains pleasant atmosphere and gives a "cocooning" I think encouraging relaxation. But I can not tell if I feel better especially thanks to this lamp, also knowing that I sleep better, eat better, take magnesium in supplement'm almost on vacation, did sports and relaxation therapy. This is a brand.