Double propeller, blows a lot, very good 40,000 mAh. The 40,000 had much better packaging and came with the usb adapter /wall socket for the charging cord. However i tried both and they were both 100% charged. Can’t complain so far the wind power is great and the noise isn’t too loud.

really nice fan, haven't tested the battery life yet.
Effective lighting and the timing is convenient to avoid leaving it running all night for nothing. also can charge your phones.

Received it today and love it.

.

This is great! The fan quality it’s absolutely perfect , the light it’s also very good.