I just remembered that about 10 years ago I was getting a replacement hologen lamp for a fixture in my Dads house at the big orange store. I think I needed a 150 watt. They didn't have a 150 but did have a 100 watt of the same style. I thought since it is dimmed down any way a 100 watt would be just fine. The person helping me got wide eyed and sternly stated that the 100 watt will not work. I will have to order a 150. When I asked why he replied, "It will burn the ballast out!" I told him I will take my chances and bought the 100 watt lamp. I think it is still in the fixture to this date. I really didn't have the time to educate him on the differences between electric discharge lamps and halogens. Looking back maybe I should have tried. [Linked Image]