"Handsome white powder coated closure doors and case provide a clean look and allow easy installation of ceiling tiles. Designed to have the case installed during the ""rough-in"" stages of construction and the fabric assembly during the finish stage. Patented in-the-roller motor mounting system for quiet operation. Standard with built in Low Voltage Control and Decora style 3 button wall switch. For easy installation, the Advantage Deluxe is available with SCB-100 and SCB-200 (RS-232 serial control board) built into the case. UL Plenum Rated case."