Having the additional advantage of closing with shutters when not in use, I was satisfied with this purchase. It does make some noise, but not excessive.

For F120, the blinds have very good performance. They open 30 seconds after activation and close 30 seconds after deactivation, just like in other similar types. It stopped the cold air coming from the light source. I am very satisfied with its operation so far (3 months), and the noise from the fan is expected, it is not annoying but not silent either.