Safety security or high abuse. Lens only or lens & die-cast aluminum back box.W lens only,W with die cast aluminum back box. Neoprene gasket assist in obtaining wet location listing. Opal or clear polycarbonate lens. Shallow cast 7 5/16" deep, deep cast 9 1/2" deep. Spec Sheets Photometrics. H12 12x12 Surface LED High Abuse, Watt.Surface mount LED aluminum profile for a clean, finished look. The LED linear extrusions are available in various shapes that may be cut to any size. Complete the look with end caps and diffuser (lenses).uding kitchen lighting, interior lighting design, architectural lighting,mercial lighting, retail ...Application:Door & Window, Heat Sink, Decoration,Shape:Surface Mount,Grade:6000 Series,Certification:CE, ISO, RoHS, Ik, IP68,Surface Treatment:Anodized or Powder CoatedThis 1M/3.3ft Shallow Flush Mount U-Shape Aluminum Channel - LED Aluminum Extrusion for flex/hard LED Strip Light w/Oyster White cover-U04 is a good deal for the extruded aluminum product and cover. It makes a good heat removing base for mounting LEDs under a plastic cover. I will make a light for the boat using these and a light strip.