This fan is already powerful big! The assembly of all parts takes some time to complete, but can be explained in fact by itself. In addition, the assembly is also well documented. Provided technical skills, also ceiling mounting is not a problem, the attachment to the ceiling should also be made quite carefully and sufficiently stable with valent screws and plugs -. Who wants to be slain by the sleeping of this strand. The engine runs very quietly in 3 stages - an imbalance on the leaves, I could not tell. Therefore there is no unpleasant vibrations. The integrated halogen lamp is very bright and can be as dim and the rotational speed of the fan, with the included remote control or control. Functions light on the remote control: On, Off, infinitely light - dark. Fan speed with the remote control in 3 steps controllable. The direction of rotation of the fan blades can be changed via a small slide switch on the motor housing - the manufacturer distinguishes between summer and winter operation. The installation was carried out by me on their own without assistance. Anyone who can connect a lamp, also can make the electrical connection of the ventilator. From me there is an absolute recommendation for this fan - he makes hot summer nights in the attic really bearable. But before buying one, the size of the fan note - he is really huge!