High-Velocity Indoor Industrial Ceiling Fan, Non-Oscillating, Voltage 277 V AC, 1 Phase, Air Velocity @ 20 Ft. 625 fpm, Motor HP 1/2 hp, Fan Mounting Location Ceiling, Sound Level 66.5 dBA, Max. Ambient Temp. 105 Degrees F, Hz 60 Hz, Watts 512.5, Motor Type Permanent Split Capacitor, Drive Type Direct Drive, Height 29 in, Width 29 in