... seriesTemper: O, T1, T4, T5, T6, H12Shape:Rectangle Shell/ Case/ HousingSize: Flexible SizeSurface Treatment: Anodized, Power Coating, Sandblasting, Polishing, ... of the line magnetic ballast. The superior cooling and rugged design of extruded aluminum will give the commercial or ... aluminum is worth the few extra dollars to get the rugged case and components. It is various applicationed in all kinds ...