Renogy Solar Panel Mounting Z Bracket Mount Supporting for RV, Roof, Boat, set of 4 Units Renogy mounting Z brackets are very easy to use, unique designed, and perfect for irregular surfaces All parts you need to mount your panels to roof/wall are included in this product. They are composed of aluminum material and are light weight. Use them to mount your panels to recreational vehicles or boats. Ideal for mounting 50W to 150W solar panels.