I have a friend with one. I will ask her.

Personally, we replaced three lights in a dark hallway with a tube/light combo. Works great, only one problem..never thought that at night when those lights are on that they would also shoot light up into the sky! Driving up at night if those lights are on it looks like landing lights at an airport.

Yes, the Solatube with the vent unit works great. I HIGHLY recommend a timer switch as the vent is very quiet, and you may forget to turn it off. It is rated at 110 CFM. Sone level is different at every location, but they think it is about a sone rating of 1.