High-Velocity Indoor Industrial Ceiling Fan, Non-Oscillating, Voltage 277V AC, 1 Phase, Air Velocity @ 20 Ft. 475 fpm, Motor HP 1/2 hp, Fan Mounting Location Ceiling, Sound Level 65.1 dBA, Max. Ambient Temp. 105 Degrees F, Hz 60 Hz, Watts 512.5, Motor Type Permanent Split Capacitor, Drive Type Direct Drive, Height 24 in, Width 24 in