Description: POWER SAVING: Push bar each side contains a travel limit switch. When the telescopic bar runs to the top or to the top, it will automatically disconnect the electricity so that the motor will not idle. Cut off the power, the motor with self locking function can be stop at any position. DRIVEN: The linear actuator can drive other objects to push, pull, and drop. The push rod is driven by a DC motor with a screw drive. The telescopic rod can only be retracted without rotation. RELIABLE PERFORMANCE: DC 12V electric cylinder, driving speed up to 5mm/s, high safety. POSITIVE & NEGATIVE: The motor is positive and negative. For example, if the positive electrode is stretched and the negative electrode is shrunk, the telescopic direction of the rod can be changed by changing it. PRODUCT APPLICATIONS: The linear actuator is used in many areas. Furniture area: sofa, chair, bed, massage chair, electric bed. Office area: serial, wardrobe, office chair, projector, laboratory, workbench. Laboratory industry: door opener, window opener, sweeper, agricultural harvester machines, yachts. Other areas of automobiles: lifting platforms, synthetic robots made of metal materials, high performance motors, integrated drive switches. Specification: Material: Metal Size Chart: 50mm: 20x9x5cm/7.87x3.54x1.97inch 100mm: 25x9x5cm/9.84x3.54x5inch 150mm: 30x9x5cm/11.81x3.54x1.97inch 200mm: 35x9x5cm/13.78x3.54x1.97inch Package Includes: 1 Piece DC 12V Linear Actuator Motor Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!