Solatube vs Other Brands

Solatube is not a new idea. Tubular skylights are one of the oldest and most widespread ways of bringing sunlight indoors. The technique was originally developed by the ancient Egyptians. The first commercial reflector systems were patented and marketed in the 1850s by Paul Emile Chappuis in London, using angled mirrors and were in continuous production until the factory was destroyed in 1943. Solatube International of Australia rediscovered the idea, got a patent in 1986, and has been marketing it for widespread residential and commercial use ever since. Today there are several such products on the market. Comparing them is interesting, and enlightening. Thanks to UK Solatube Division for this great research:

Solatube® provides more daylight all day long, all year long than any other tubular daylighting device – guaranteed! Not only is this backed up by independent tests carried out by the Building Research Establishment, but a simple mathematical calculation demonstrated below shows how the tube material plays a huge part in providing the best light transfer. As you can see, a small difference in reflectivity value can make a substantial difference to the overall light delivery of a tubular daylighting device. //www.solatube.co.uk/

not all tube sun lighting is the same

not all tube sun lighting is the same

How much light will Solatube Provide?

Solatube, indeed any tubular daylighting device, works in a way similar to a window, but not exactly. A window lets in the entire spectrum of light whereas Solatube is designed to filter out the portion of light that fades fabrics while causing sun-loving plants to flourish and produce fruit. For this reason, I think it is misleading for Solatube to use a sunflower to indicate the kind of light you can expect to receive from Solatube lighting.

From having lived in London for nine years, I can only say, by way of clarification, that when my friend from San Francisco or I saw the sun come out, we would call each other to rejoice. It was an Event. Most light was diffused through a variety of clouds.

Solatube is excellent in that it has more than twice the lumen output of electric bulbs on an average. It’s great for brightening a room, and I’m glad I bought it despite the fact it fails to sustain vegetable plants over the winter due to the way it filters sun rays.

It’s also much less costly to put in than a skylight, and, unless you have the skylight specially made, it will filter out the fading spectrum of sunlight and be no more helpful to growing vegetables in winter than Solatube.

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