I need to know what the best light box for light therapy is. Is it that fluorescent light necessary or any bright light is ok? I know that they use a special type of light fixture that produces much brighter light than regular indoor lighting. What about UVA or UVB?
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The best lights for bright light therapy are metal fixtures containing white fluorescent light bulbs behind a diffuser. They should be tilted forward so that the light is angled downward, permitting more light to enter the eyes and decreasing the apparent brightness of the light, in turn creating less glare and improving user comfort. The diffuser performs two purposes. First, it spreads the light evenly over the surface of the unit, and second it absorbs and filters out the potentially harmful UV rays. While the critical factor in bright light treatment with a light box is the intensity of the light, full spectrum light with the UV-A and UV-B filtered out for eye and skin safety produces fewer glares than other types of lighting.
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