Electric Vibrator Battery Operated Electric - 12VDC Battery Power Source Voltage 12VDC 1 Phase Amps 22 - HP Force Rating 400 lb. Max Bin Weight 4000 lb. Speed 7000 vpm 75 dBA Max Temp 104 Degrees F Bearing Type Prelubricated Overall Height 4-1/8 In. Overall Length 8-1/4 In. Overall Width 4-7/8 In.