These seem so inexpensive that it makes me wonder if they're any good. Thoughts anyone who already has a lightbox?
As far as I know, the high price has a lot to do with the amount and spectrum of light that the lamp has to produce in order to be effective. Look for the amount of light the lamp produces (the lux), as it is the indicator of how much time you need to spend under the lamp. (For example, I think my lamp produces 20,000 lux, which means I spend 10-15 minutes under it at the distance of 1 foot away. If I'm 2 feet away, I need to increase that time to 20 or 30 minutes. you'd do best to look up lux and all that on your own, though, since I can't really remember what corresponds to what.)
