1)LED Panel toplight Aluminum Extruded Frame 2)Reliable Quality best price ... ,2x, 3x, 4x, 5x, 6x, 7x seriesTemper: O, T1, T4, T5, T6, H12Shape: Round ShellSize: Flexible SizeSurface Treatment: Anodized, Power Coating ... /Body/ Heat Sink/ Shell for all kinds of Square & Round LED Panel lights....... aluminium ...