Brand Name: Delta Sub Brand: BreezRadiance Product Type: Ventilation Fan/Heat Combination with Lights Wattage: 13 watts CFM: 80 Bulb: Yes Grille Material: Plastic Compatible Duct Size: 4 in. Assembled Height: 5-1/2 in. Assembled Width: 14-3/8 in. HVI Certified: Yes Housing Material: Metal UL Listed: Yes Ceiling or Wall Installation: Ceiling Light: Yes Fan Sound Level: 1.5 Sones Assembled Depth: 8-1/4 in. For rooms up to 80 sq. ft. * Built-in thermostat for consistent temperature* Heater module equipped with thermal cut off fuse* 1300W heating element evaluated by cUL for safety standards