The Proluxe economy extrusion requires a 5/8” width and 19/32” height for installation. Each one includes a frosted propylene cover which protects the LEDs from dust, and also hides direct view of LEDs, while diffusing the light. Use the EE1-END (sold separately) for a finished look. The E-CLIP is recommended for wooden mounting surfaces. Fits most tape up to 10mm in width.