For closed-off rooms with indirect outdoor access, Solatube's tubular daylighting devices offer a versatile way to pipe natural light in from above. Using a highly-reflective rooftop duct, sunlight can be delivered and diffused as deep as 40 feet indoors.  My Saves from See How Solatube Products Stream Natural Light Into Even the Darkest Corners of the Home

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For closed-off rooms with indirect outdoor access, Solatube's tubular daylighting devices offer a versatile way to pipe natural light in from above. Using a highly-reflective rooftop duct, sunlight can be delivered and diffused as deep as 40 feet indoors.