SuperPowerJack actuators and clones?

[Likvid]

Can any one answer me what manufacturer makes best SuperPowerJacks?

When checking Alibaba there are dozens of manufacturers of this actuator, are they all clones?

I know Moteck makes them but they seem to be of inferior quality and after searching the net i found that there are higher quality Super Power Jacks from other manufacturers i never heard of.

Isn't someone got the patent for this actuator or is the whole chinese market corrupt with clones?

Look at these two pictures, they both have the same model name SuperPowerJack QARL-3624 but they differ enormously in quality inside as you can see, guess which is the cheap one?

 

[stanleyjohn]

Dont know which is the cheaper one but the one on the left looks alot like mine

 

[Likvid]

The one on the right is the higher quality model as you can see it has a real limit switcher and metal backplate.

The cheaper one have cheap plastic limits with a plastic backplate and a real cheap plastic cable connector, also the cable insert on the cheap one does not have a proper cable insert thru the housing but a small cheap rubber insert

Also you can see that he higher quality version got a real gasket and thicker metal housing.