RT-36-2G, Drop Ceiling UV Fixture - The recessed troffer is designed to work with lay-in ceilings and will fit a standard 2' x 4' ceiling grid space; it can also be offered with hardware to mount to solid ceilings. The unit features a one-piece, die-formed frame that is embossed laterally and horizontally for maximum rigidity and heat dissipation. Units are UL listed and work with Class P ballasts. The unit is fitted with a hinged louver that features and optical egg-crate grille. This fixture is available with a combination of lamps per the application and this can include germicidal lamps for sterilization and standard lamps for illumination.