Ordered 2x 10nm blind motors, turned out not in stock - Seller provided bogus FedEx tracking number in an attempt to make me believe it was mailed. Told me there was a problem with the 10n motor and asked if I could accept the less powerful 6nm motor. Turned out the "problem" was no stock available for the 10nm version. Why show the product on Aliexpress if you don't have the stock? Wasted almost 3 weeks / finally refund issued. Never again.