Featuring a smart thermal control, the OA109AP111TB03 (TEMP Control) Series AC axial fans employ a ball-bearing design, measure 120 mm x 120 mm x 38 mm, and provide airflows of 63.3 to 96.7 CFM. Similar in function to DC smart fans, the TEMP Control Series’ smart thermal control reduces power consumption by increasing or decreasing fan speed according to the ambient air temperature. This results in up to 30% energy savings over similar-sized, single speed fans. ORION FANS, Dallas, TX. (800) 323-2439.