This lens for pilot light is a separate component of the Harmony 9001K and 9001SK range, diameter 30mm control and signaling units. The 9001A9 is designed for 9001K and 9001SK illuminated metal pushbuttons. It is an amber-domed lens made of polycarbonate. It weighs 5g. The 30 mm Harmony range offers a large choice of robust and reliable products to meet a great number of applications in heavy industries.