Light body: high-quality aluminum, the surface anodic oxidation., Practical electronic ballast, no frequency of deletion, Model: OZZ1 X 28-A-G, aluminum grillsOZZ2 X 28-A-G, aluminum grillsOZZ1 X 28-A-J, plastic grillsOZZ2 X 28-A-J, plastic grills A-ALUMINUM FLUORESCENT FIXTURE