You set it off to your side, or up top, whichever works...You get the light that way, but you should never stare directly at it. I have mine to the left of my computer screen so I can have some morning light while reading the newspapers & PC. I've been told that using them late in the day, or too much can get you too ramped up.

Here are some examples of light boxes & their prices:

https://www.amazon.com/s/ref=nb_sb_s...=1I13FHLZ85E4Z