Performance: In an installation of 2 lamp 32W luminaires in a room cavity ration of 1, reflectances 80% ceiling. 50% wall, 20% floor, the CU. shall not be less than 0.81. Materials: Chassis parts are die formed code gauge cold rolled steel. Finish: Chassis - white baked acrylic enamel, phosphate undercoating . Lens: Extruded virgin acrylic diffuser. Electrical: Rapid start HPF, thermally protected class P ballast CBM certified by ETL.If K.O. is within 3 of ballast, use wire suitable for at least 90°.Labels: Listed by CSAUS.