The extra frosted Liger cover is designed to fit any of our KL1 sized extrusion with a 0.44" mounting base. The polycarbonate cover is specially designed with optical material to diffuse your LEDs more so than our standard cover K frosted diffuser. When using an LED strip light with at least 3 LEDs per inch you can create line of light fixtures with no visible dots or LED hot spots. The frosted matte material also provides protections as well as pleasing aesthetic when your LEDs are not in use. To properly diffuse your strips to achieve a line of light effect this cover must be used with our Ribbon Star Max, Ultra, Supreme, MegaLux or RGB Lux strip light varieties. When used with the shallower MICRO profiles hot spots will still be seen through the cover. This cover is available in 1M, 2M and 3M lengths.