check with your eye doctor first to make sure that it won't cause any issues for you.
do you use your light all year round or just during the winter?
i use my light year round. i use it much less in the summer but i do use it during times when the weather is overcast and grey for a few days. i also discovered last year that if i'm working in an office that is dark and has very few windows, then i need to use my light almost every day.
do you get a headache when you use your sad light?
some people find that they get a headache when they first 