Product review (5 stars): Wonderful was able to install the new one with relative ...
The Sub Zero refrigerator light went to appliance light heaven and  we finally got tired of foraging in the dark.  After a  Google search I came across the replacement switches along with reviews and directions.  Mr. Wonderful was able to install the new one with relative ease in about 20 minutes.
This was definitely a cost-saving repair and you don't need an engineering degree to do it.