To all of you who think your room isn’t getting super heated from the solar tube just get close to it in the daytime when it isn’t cloudy and you will realize it. The tube wall itself reflects the light and with it comes heat. I’m glad you like them to me it’s just another hole in the roof that heats up the house. I have light switches that are miraculous. They turn on the light and then off again !

Do not need another hole in the roof. Led bulbs use two cents of electricity. Turn it on when needed and turn it off when not. Had a solar tube in a house previously and it gave off an eerie blue light. No thanks.

The aperture is a great feature. My sister does not have this feature on her solar tube and there is always bright light in her kitchen (on a sunny day) which is open to the living room. In her home, there is no option for "theater mode" to watch a movie during the day. I do not like that solar tube at all because of that.

Looks like a bright led light when the sun is out. No detectable heat and I have put a thermometer on the floor under it.

Ok , in virtual reality that is totally believable but in the real world that doesn’t work. Was it overcast and 55 degrees when you reportedly “put a thermometer on the floor under it”?

I don't know how much heat transfer occurs from a solar tube. I understand that it is a lot less than the heat transfer from a standard skylight. But, measuring the air temperature under a solar tube is not a good way to measure it. The heat from the sun is radiant heat, which heats surfaces in the house, and then the warmer surfaces will transfer the heat to the air in the house. So, the radiant solar heat from the sun does not transfer heat directly to the air in the house. It first needs to heat up the surfaces in the house using radiation.