Solar Panel Mount dimensions

I have several Ring devices, including one solar panel that is installed and working great. I have another camera (Stick-Up Cam v2) that I have mounted and I now want to put a solar panel near it. I have a section of wood on the side of the house that is about 2.5 inches wide. I cannot find the size of the mounting bracket for the solar panels. Can you porovide them, or a link to where they can be found? To clarify, the dimensions of the bracket that is screwed into the wood.