These solar panel brackets are make of aluminum alloy, has high strength and good resistance Solar Panel mounting L brackets are very easy to use, and can Boat Off Grids Roof and Any Flat These mounts have the advantages of strong load bearing capacity, windproof, waterproof and shockproof to ensuring safe use These solar mounts have simple structure, which can greatly improve the efficiency of on site installation and save time and labor L foot solar panel mounting bracket is widely used for the installation of roof photovoltaic systems with different structures, Manufacturer: Greabuy