Review on Set of 4 Units - RICH SOLAR Z Brackets for RV Roof Boat Solar Panel Mounting Hardware by Icehot Cleversley

I have 4 Richsolar RS-100 100W panels. When I turned them over to do this installation (in a remote location no less) I found that in 4 panels I had 3 different mounting hole configurations, one panel was very different from the other 3. Not only that, but NO panel. that I have were compatible with these mounts (I have a type B Z mount). So now my records have to sit on the floor for a few more weeks before I can try the drive again. Very, very awkward and, to be honest, silly: even if I bought the wrong mounts for my panels, the panels themselves must have the same model name (RS-100 in this case).