Adjustable Speed AC Motor Control, Input Voltage 120 VAC, Voltage Output 120 VAC, 50/60 Hz, Max. Amps 2.5, 1/4 HP, Length (In.) 2, Width (In.) 1.5, Depth (In.) 0.41, For Use With Universal, Shaded Pole and PSC Motors on Fans, Blowers, Pumps, Vibratory Feeders, Heating and Lighting, Features Controls Most Single Phase AC Motors and Resistive Loads, Not For Use With Capacitor Start Motors, Includes Knob, Dial Plate, Speed Pot with On/Off Switch, 2 Leads with Bare Ends