The push rod is by a DC motor with a lead screw drive. The telescopic rod can only be retracted not rotated. The motor is positive and negative. For example, if the positive electrode is stretched and the negative electrode is contracted, you can change the direction of the expansion and contraction by changing it. temperature -10C to +50C. Standard protection level: IP54. Low noise design, the noise is lower than 50dB. do not disassemble the machine. Product features: drive other objects to push, pull, raise and lower. Product application: TV lifting table, massage table, electric bed, chair, electric equipment, -type equipment, electric sofa, camera stand, camera, etc. Features: This miniature linear actuator is used in industry, agricultural machinery, construction, sweeping vehicles, ships, , and many other applications. It can be replaced by hydraulic and pneumatic products, which is suitable for saving energy consumption. Specification: Moving distance: 100mm Speed: 30mm/s Input voltage: 12V DC Duty : 10% technical parameter: Each side of the push rod contains a travel limit switch. When the telescopic rod runs to the top or to the top, it will automatically disconnect the power supply. The motor will not run idly. Cut off the power, can stop at any position, with self-locking function. Notice: Confirm whether the motor voltage is use. If it is a DC motor, then also consider whether the supply current is sufficient. Do not or operate in high temperature or humid environment, do not place in gas, otherwise it will reduce motor efficiency. Positive and negative motor When the terminal needs to be soldered, the temperature of the soldering iron is 340C40C. The heating time is within 3 seconds. Do not deform the plastic. Material:Metal colour:As Shown Package Contents: 1 x 30mm/s DC 12V -type electric push rod 2 x mounting bracket Only 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.