MAKE and Instructables are treasure troves of awesome ideas, although some are more involved than others. This particular lightbox for seasonal affective disorder (SAD) is pretty simple and can be made with spare and scrap parts, depending on what you and your friends have lying around the house/workshop. If you are using your light therapy box for seasonal affective disorder, check that your lightbulbs are an appropriate color temperature, between 3000 and 6500 degrees Kelvin. Most fluorescents fall within this color temperature range, but incandescents and some LEDs (those designed to give off very “warm” light) don’t.