Using mixing desks at night in poorly lit places has always been a problem for sound engineers. Can't see knobs, faders, channel strips nothing. I was looking for a xlr lamp that would not cost a lot, and there the Adam Hall SLED 1came in! Needless to say it lights up every board I've used it on, with its bright led. It even has a button to turn it on or off . Perfect for everything, will buy more soon !