Linear Actuator Rated Load 600 lb. Stroke Length 18 In. Speed @ Rated Load 60 in./min. Duty Cycle 50 Percent Voltage 12VDC 25 Full Load Amps Retracted Length 24-1/4 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 Ended Ball