Features: Recessed ceiling mount grid; 1'×4' One-piece sealed housing and doorframe for infection control Smooth exterior lens for cleanability Sureshield™ mesh filter reduces radiated emissions Radiated and conducted emissions controlled as per MIL-STD-461F with electronic dimming ballasts Application(s): Surgical Suites Lens Type(s): Specified Lens Micro Linear Prism Lamp Type(s): Linear Fluorescent Size(s): 12"×48"