Mud-In Outside Corner Aluminum LED Channel Housing is a slim, low-profile, recessed aluminum extrusion for LED strips that evenly diffuses light when used with dotless, high-density, LED strips. The compact design allows for a seamless plaster-in installation inside 1⁄2" drywall without having to modify framing. Easily recess in walls, ceilings, and tight spaces or corners to cast beautiful, diffused, and even lighting throughout your space.