
I read all the reviews that said it doesn't fit the standard 1/2" lamp stem, they were right but I didn't seem to to have choice, since I needed such a device. I took out my handy drill bit and slightly enlarged the receiving hole. Now it works perfectly and you don't notice it. So if you have bits, a drill and 10 minutes, you can put them to work for you. Lamar in Bakersfield