works great, sturdy and well built.

Easy to install, work great, good price, fast shipping.

These motors are much nicer than the ones I used to have on my shutters. They are so quiet. I didn't realize how loud of a humming sound the other ones made until I replaced one. Now I am going to replace the other one so I can get rid of that sound completely.

This is a nice system when used in combination with a temperature controller. It opens and closes the greenhouse shutters nicely. It is spring return, so if power is lost, it automatically closes the shutter.