Feature: 1. DURABLE MATERIAL: Micro linear actuator built in excellent aluminum and ABS plastic, sturdy enough and with fashion look. Come with end limit switch that will automatically top when the device reach the end of stroke, ensure the motor won't burn out 2. EASY INSTALLATION: Electric mini linear actuator are powered by 12 volts DC, wire up the positive and negative poles in correct, apply voltage to the device and will extend, reverse the polarity and will retract 3. SAFE AND COMPACT DESIGN: 12V lock linear actuator with over current protection, short circuit protection, overload protection, over voltage protection design 4. MULTI APPLICATIONS: Linear actuators a great pushers used in applications such as agricultural machines and equipment, factory or home automation, material handling adjust, helms and cabinet door, robot, lift operate tables and other equipment, adjust the TV antennae, deck chair, window opener, linear servo, solar, extend and retract the cylinder 5. APPLICABLE SCENARIO: Telescopic linear electric actuator has small volume, wide application, including industrial, agricultural machinery, catering, ventilation facilities and other occasion Specification: Item Type: Electric Micro Linear Actuator Speed: 4mm\/s Thrust: 150N Stroke: Approx. 20mm \/ 0.79in Tube: Aluminum tube Mounting Connector: ABS Protection Level: IPX4 . Package List: 1 x Electric Micro Linear Actuator