silent, I had one of those artificial sunlight lamps. It helped last winter but I cannot seem to find it at the house. I asked my psych doctor to raise my anti-depressant to a higher dose but he said no. I am exercising daily and it is helping but not as much as people tend to say it should. If I could stay drunk 24 hours a day 7 days a week I'd probably would. However, financial, legal and physical problems would prevent me from drinking like that.