What is Spectralight® Infinity?
Spectralight Infinity is a revolutionary new material developed by Solatube International designed specifically for tubular skylights. It took four years, countless hours, and over $1.2 million in research and development.

Spectralight Infinity is the only reflective tubing material ever designed and made specifically to meet our demanding requirements for ultimate specular reflectivity and no color shifting.

Why is Spectralight® Infinity important to me when buying a tubular skylight?

With Spectralight Infinity, there is no significant light or color loss as the sun's rays are transferred through the tubing. The result is the brightest, cleanest, natural light possible today.

How does Spectralight® Infinity bring me more light?

The new Spectralight Infinity technology uses a complex layering of polymeric material with it's unique indices of reflection and internal refraction to more effectively reflect light and direct it down the tube. The result is natural daylight output that defies what was once considered scientifically possible.

What is specular reflectivity and why is it important?

Specular reflectivity is the "mirror-like" reflectance of the surface material. For a tubular skylight, it is the specular reflectance that is facilitating the quality of the daylighting, and it is the specular reflectance that determines how effectively daylight is transferred through the tubing and into the room. The higher the specular reflectance, the more efficient the skylight can be.

How can Solatube's products bring so much daylight into the room?

The reason for this astonishing claim, is the ultra-high "specular" reflectance of our tubing materials! With the advancement of Spectralight Infinity, less that 1% of the daylight is lost with each "bounce" of daylight down the tube!

This increase in reflectivity (and, therefore, the skylight's efficiency of light transmission) becomes increasingly important for the winter months, early morning or late afternoon hours, and overcast days when a significant amount of the useable daylight is coming from low angles of the sky.

At these times, the reflected daylight may make hundreds of bounces down the skylight's tubing, which would result in minimal usable light output for skylights using the older tubing materials (where 8% or more of the light is "lost" with each bounce). However, with Spectralight Infinity, the advantages are clear, over 500% more light output for these normally problematic daylight hours, resulting in radiant, useful daylight in your home or office!

What is Spectralight® Delta?

Spectralight Delta is the Solatube angle adapter. Two of these angle adapters are provided with each unit. These adapters allow for easy installation where you may face the following situation:

• where the roof and ceiling holes don't line up;
• when there may be attic obstructions; and
• when the installer wishes to place the roof assembly away from the ceiling location for other reasons (i.e. run the tube from a north-facing room to a south-facing roof location).

How long can I make the tubes with Spectralight® Infinity?

As the tube length gets longer the light output is reduced. Good lighting results can be expected for tube lengths up to 20' for the 10" Solatube and 30' for the 14" Solatube and up to 40' on the 21" SolaMaster Series. But much longer tubes are in use.