Solar Panel Mounting Z Bracket Set of 4 for RV Roof Boat Mounts Kit Aluminum Durable, sturdy and easy to install especially on irregular surfaces. The Brackets work best for installing 50W to 150W solar panels. All the individual parts you need to mount your panel are included in our package - one click and you will have everything. The Z Mounting Brackets are manufactured of high quality aluminum and therefore are very light weight and convenient. They can be used to mount panels to boats or recreational vehicles just as well as for roofs or other irregular surfaces.