The Tenmat FF130E Recessed Light Cover is made out of a fire safe mineral wool material and was specifically designed to protect your light fixture from insulation in the attic and to stop unwanted air leakage through your recessed light. Fire and thermally tested in accordance with UL1598 and IEC 60598-1 and can be used with IC, as well as non-IC rated recessed lights (see installation instructions for maximum lamp wattage and types).