Tenmat, FF109-200 1 Hour Fire Rated Downlight Cover - Fireproofing.US
Cutout 85MM Aluminum Housing Cover GU10 Round LED Module Spot Light Holder Fixed Recessed Led Downlight Frame - AliExpress
Tenmat FF109-250 Cone-Shaped 1 Hour Fire Rated LED Downlight Cover; Fits Most 4" and 6" Low Profile LED Downlight Fixtures; Significant Labor Savings; Lightweight; Reduces Heat Loss - Amazon.com
FF109-250 1 Hour Fire Rated Ceiling LED Downlight Cover : Tenmat USA
Tenmat USA - For Passive Fire Protection and Fire Rated Products