1, dia. 75mm, 2, borosilicate material 3.3 3, Led lens 4, Transmittance: above 94% 1, Size details : dia.: 75mm, middle thickness: 28.7mm, edge thickness: 3.3mm, edge width: 2mm, Parabolic diameter: 71mm2, Material: borosilicate 3.3 , K9L are available;3, Function: Headlights on full beam LED Aspherical Lens