Shows the view of the back of the light head. Notice the "master" (green) switch and the 3 smaller switches. These smaller switches allow you to control the banks of bulbs, so you can have 2,4 or 6 bulbs on. Anoter cool thing is that the light can be mounted either horizontally or vertically on the stand. Of course in my case it makes no difference (32x32) but they have other lights that use a similar light head...