Low Noise & Safe - The motor of this 12v linear actuator is upgraded low noise (less than equal 50dB sound) design, makes it have large self-locking force and strong durability. The built-in limit switch makes it automatically cut off the power when the electric actuator 12v reaches top/bottom. In addition, there is also a built-in safety lock to make the stroke stop at any position, which makes it much when use. Fast & Heavy Duty - Travel speed: 10mm/s (0.39Inch/s), Max push pull load: 330lb/1500N. Stroke Length: 6 inch (150MM). This linear actuator 12v is equiped with a heavy duty fast motor to have good performance in both speed and strength aspects. IP54 Waterproof - This heavy duty 12 volt actuator is IP54 waterproof protection, can withstand harsh working environments, enabling automation in home, outdoor, medical, agricultural and other fields. Could widely be applied to window opener, electric sofa, electric wheelchair, electric nursing bed, automatic door opener, industrial electric lifting system, solar tracker, etc. Sturdy & - The linear motion actuator is made of high quality aluminum alloy, which is stable and sturdy for most cases use, makes this 12v electric actuator and long lasting for use. Easy to Install - of 12 volt linear actuator include a set of mounting brackets and a polarity reversing switch for use, makes it easy and convenient to install and connect this waterproof linear actuator., Weight: 2.61137549339 Pounds, Manufacturer: Prterver