Linear Actuator, Rated Load 1,200 lb, Stroke Length 4 in, Speed @ Rated Load 54 in/min, Duty Cycle 50 Percent, Voltage 12V DC, 25 A Full Load Amps, Retracted Length 12 in, Max. Ambient Temp. 60 Degrees C/140 Degrees F, Enclosure Type Totally Enclosed Non Ventilated, Motor Type Permanent Magnet, Thermal Protection Automatic, Capacitor Included No, No Capacitor Required, No Feedback Signal, Clutch Included Yes, Drive System Type Gear, Gear Material Aluminum, Bearing Type Double Ball