[Heavy Duty] Made of aluminum alloy,plenty of power unit allows it to push and pull up to 750N\/160lbs. Mounting brackets included. Low noise design, less than 42dB. IP54 protection against dust, water, and corrosion.[Specification]Fast speed: 10mm\/s, Input Voltage: 12V DC. Rated power: 20W, maximum 30W;Stroke length = 4 inches (100mm);Retracted length = 8inches(205mm); Extended Length=305mm(12 inch).Linear actuators are actuators which create motion in a straight line, can be used with any application that requires moving something in a straight line. Drive other objects to push, pull, rise, drop.[Built-in Limit Switches] Cut off the power, it can be stopped at any position, with self-locking function[Safe]Over current protection, overload protection, over-voltage protection. It works in temperatures from -4 Fahrenheit to +167 Fahrenheit and can be installed on snowblower chutes, chicken coops, industrial equipment, solar panels, etc.[Wide Applications] TV lift tables, massage beds, electric beds, electric equipment, micro-devices, electric sofas, camera frames, cameras and more.Colour:blackMaterial:Aluminum alloyPackage Contents:1 x Linear Actuator Motor2 x Mounting bracketsOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.