Is this intelligent ceiling fan already in circulation in the market? Can I understand the performance of this product? What kind of human body sensing mode does it work? The current human body sensing products on the market have a disadvantage ~ sensing distance is their limitation.

Is there any requirement for the ceiling height of this lamp?

Has this already landed? Or is it a concept?

Is this human body sensor used to replace nightlight? Otherwise, the function seems to be a bit chicken ribs.