[coffeebean]

Originally Posted by NoMo50

We have a solar tube (Solar Guys...Solatube) in the kitchen, and absolutely love it. No need to turn on any lights in the kitchen during the day. The tube has a built-in aperature up inside the tube that is operated by a wireless remote. The aperature functions somewhat like a camera lens, and it can be wide open, completely closed, or any point in between. The remote itself is about 3" square, is made of glass, and works like a touchscreen. It can be mounted anywhere. We never mounted ours, as it is rarely used. We keep the tube wide open, as we like the kitchen bright.

When the tube is completely closed by the aperture, does any light get through or is it completely closed off as if it were a solid ceiling?