However skylight does have white walls which reflect less... but the light usually bounces once instead of 10 times.
People keep saying that the light in increased via the tube (which i don't buy)
If true then it might only take 2
However, Assuming a 5% loss in light on each reflection in the tube. On a 10 foot tube, unless the sun is perfectly lined up, you are going to be reflecting a bunch of times.. so then you would lose light and so it would take 10 or 20 tubes to be equal.
Last edited by caseynshan; 04-07-2012 at 06:27 PM.