because when I have to back a trailer onto a bay door at the hub, after sunset, I have these damn lights shining into my eyes as I am craning my neck out the window to watch the movement of the trailer. These are the lights used to illuminate the interior of a trailer so that the unloaders can see what they are doing. They should be turned off after the job is done. Just sayin'. I think I started this thread just because of the cool title.