Description: High Torque D.C. Compact Electronic Servo Direct MotorAdjustment: Easy to ajust FINE TUNE speed adustment dialLight Socket, Energy Saving, High Torque, QuietShaft: AMCO Shaft Weight: Approximately 28 Lbs Available in 400Watts and 550WattsWatts: FESM-400N - 400 Watts Power: 110V Single PhaseRotation: Bi-directional (Through switch)RPM: 0-3450 RPM Compact Design with high torque,low noise and 12 built-in adjustment settings