Where cam I find a replacement Zing Ear push button switch, model #E89885? It goes to a light fixture mounted in the headboard of my bed. I pressed it a few nights ago and the button fell out of the switch and I can't get it back together. No one locally has one the right size. The stem (from the base to where the button comes out of the switch) needs to be about 1 1/4" long in order to be long enough to come thru the mounting hole.