This product adopts the excellent aluminum alloy case which is thick sturdy and powdercoated on the surface for antirust This actuator supports both the retraction and extension movement of the electric device 20 stroke length 247 retracted length and 447 extended length To protect the motor and main electronic device this actuator should be connected to DC 12V power supply We deploy a powerful 900 N motor for lifting or down It travels at 10 mms speed while silent on working Installation is not complicated and you can finish the job quickly We also offer two brackets and several screws for more flexible assembly This product can be widely used for the following fields like home furniture hospital health care industry etc