[rohrmann]

This is a photo of mine with the cover off. Don't mind the innards, as I disconnected the bulb and tied in my LED strip that now works off the porch light switch. You will see the notches around the edge and there is one or two in the lower side. They are what the molded tabs of the lens fits into, that you use a screwdriver or other implement to push the lens tabs out of to remove the lens.