SATCO NUVO'S Fire Rated Recessed Downlights are engineered for use in fire-resistant ceiling construction and are certified for 2-hour fire protection when installed in most floor-ceiling assemblies, including UL Designs L505, L511, L536, L538, L541, L556, L577, M500, M510, M521, and M543. These low-profile luminaires feature a slim housing compatible with fire-rated ceiling assemblies up to 2 3/8" thick, along with a red-painted back housing for rapid identification during inspections. Designed to deliver consistent, high-quality illumination with integrated fire-safety performance, these downlights support residential, multi-family, and commercial installations.