Tasumaki Ceiling Mounted Fan LD110 LED Lights 120 CFM better than Panasonic Ceiling mounted fan with Beautiful patent LED flat cover design, Low consumption LED lights last for 10K hours Virtually silent operation ventilation fan, Airflow: 120 CFM, Noise &lt;1.2 Sones 4" duct connector, 120V., 60 Hz., 45W Rough opening: 9-1/4 x 9-1/4", Housing Size: 9"L x 9"W x 7" Limited Lifetime Warranty.