I had converted my blind to electric power a few years ago, with small gear motors 12 volts, unfortunately, these engines were (control) often broken and the dealer was no service and no E-parts, so I have now for some craft years, all unarmed in this Gurtwickler, and am very happy, these engines are fast and powerful enough to lift the Alurollos, the control electronics is super with lots of programs, and with the additional purchased handheld transmitters all is to make matters comfortable from the Sesel. I would buy it again, but only by Rademacher, no cheap scrap, so I have a lot of rum annoyed me too long, much creativity classes and a lot nervous.