... Design,Quick Sample Specification:Aluminum LED Underwater Light Housing/Shell/Covers for (LED Downlight/ Street Light/ Ceiling Light ... ) Mechanical Surface Treatment: Grinding, Anodizing, Painting, Power coating, Screen printing, Tampon printing, Sandblasting, Polishing, Tumbling (barrel polishing),Electroplating ... customer requirement. Aluminum LED Underwater Light Housing/Shell/Case/Cover