Higher Torque Reciprocating Cycle Linear Actuator DC 24V 120RPM Variable Speed Adjustable Stroke 2CM-8CM Max 40 lbs,with Power Supply (24V80mm120rpm)

No issues it is working as expected. There were some instructions in the box but really folks? All you need to do is attach the two wire fast-on connectors on the Female power connector pigtail to the two motor terminals. I am not sure way they sent two pigtails, one without the fast-on connectors and one with the connectors. Easier to uses the one with fast-on connector that slid on to the motor power tabs. Be gentle people. The motor tabs are not super strong and could be bent off if to much force is applied.The only adjustment is the position of the shaft to the motor arm and attach the motor arm to the motor shaft. Motor shaft arm position example is if you want a two inch shaft travel just attach the shaft one inch from the motor shaft. Any other travel you want will always be 2X the distance from the motor shaft to the shaft knuckle. Mine came with the shaft travel set for the max travel which I believe is 6 inches. I only needed 3 inches of shaft in/out travel so I set the shaft knuckle 1.5 inches from the motor shaft.

It doesn't come with a stand unless you want to pay another 100 so I made one which was relatively easy I used a cast iron table removed the top and bolted the liner actuator to it, I've got the suction cup adapter on it which works well if your toy has a strong suction but not so well if it doesn't. I'm giving this 5 stars for the price and capabilities of this model compared to ones that are specifically geared for sexual functions this is cheaper, faster, and has a much longer stroke length than other items I looked at.

Mounted ours on shower wall for easy cleanup

The very next day after the possibility of returning this item (30 days), it quit. It worked great when it worked. Then without warning it would no longer run. Don't waste your money.

Quality

I built myself a "Special toy" with this.It wears me out long before it will wear out.

attempted to use this as a holiday decoration movement device, for hand waving and such on VERY light items, the reality is this thing try ed to start a fire, its poor quality and bad partsfor anyone wondering how the item works or..doesnt in this case if you have it pointed straight up with ZERO load it cant even lift the weight of the main rod at anything less than half power and will stall out under its own weight, on level use it stalls out under the slightest loads, but worse youll think its working untill it just stalls at random gets hot and burns out

The motor on this is very weak. I found that if it is loaded with anything that weighs over two pounds, the motor totally bogs down.