Q: What is the light output, as measured in lumens, or lux, or foot-candles, of your various lightboxes? I want the brightest possible model of lightbox, and I want to determine which is the brightest by using these metrics.

A: We don’t have exact scientific measurements which would still have margins of error because 2-D light surfaces always have some variance. Please consider that what I mean is, when Lightbox Company X gives you a measurement of light output at a 2-D surface, where are they going to place the measuring instrument? There’s no baseline for Read the rest of this entry »