Feature: 1. Wide range of uses and is perfectly suitable for electric sofas, massage chairs, electric recliners and other lift chairs. 2. With a straight 5 pin socket +01 male connector, the installation method is simple, suitable for home use. 3. Using high quality ABS+aluminum material, durable, wear resistant, corrosion resistant, long service life. 4. Linear actuator, 333MM stroke, 1000N load, built in limit switch, easy to control, stable and reliable performance. 5. Practical to use, support H type or V type installation direction, IPX4 protection level, and the working noise ≤55dB(A). Specification: Item Type: Linear Actuator Material: ABS+Aluminum Weight: Approx. 2678g / 94.5oz Voltage: 29V The Shortest Installation Distance: 135mm / 5.3in Stroke: 333MM Load: 1000N Product Size: Approx. 53x17x9cm / 20.9x6.7x3.5in Installation Direction: H Type or V Type Limit Switch: Built in Frequency of Use: 10%, up to 2 minutes of continuous work Guide Tube: Aluminum Tube Installation Connector: Plastic Protection Level: IPX4 Noise: ≤55dB(A) Test Distance: 300mm / 11.8in Use Environment Temperature: 0 - +40℃. Package List: 1 x Linear Actuator1 x Manual8 x Screw Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3.The product fits the sofa iron frame model 4318, 5311, please check the type number of their own sofa iron frame or the name tag on the old push rod, if the old push rod name tag 135‑333, you can buy the product.