I thought that level of intensity was a bit too much, and not needed for identifying flaws. With the lathe on, the halogen seemed to be very distracting, particularly when there were dark and light portions of the workpiece. I have since gone back to having two adjustable arm incandescent lamps at the headstock, and a 4-foot fluorescent fixture just above the lathe.
Although I'm not feeling handicapped by my current lathe lighting......I must admit that I'd love to give the Dentist's light, or the dock light that Justin mentioned, a try.....that is, if I could give them a try without expense.