1、Can be used in agricultural machinery, construction, cleaning and sweeping vehicles, ships and so on. 2、You can also use it to replace hydraulic and pneumatic products, suits for saving energy consumption. 3、The low noise operation is very smooth and safe, and when it reaches the top, it will stop automatically. 4、Has overcurrent protection, short circuit protection, overload protection and overvoltage protection. 5、Premium aluminium alloy material with IP54 waterproof grade ensure great durability for long‑term use. 1 x Mini Electric Linear Actuator2 x Mounting Rack Item Type: Mini Electric Linear ActuatorMaterial: Aluminium AlloyWorking Voltage: DC12VStroke: Approx. 50mm / 2inDistance Between Two Installation Centre Holes: Approx. 105mm / 4.1inNoise: ≤55dBMaximum Waterproof Grade: IP54Application: Smart smoke extractor, window opener, robot, home automation.