Used in both our LightTracker™ Reflector and our tubing, Spectralight® Infinity is a proprietary material that has a specular reflectivity of 99.7%*, the highest of any material used in tubular daylighting devices on the market today. As a result, less than 1% of the daylight captured is lost with each "bounce" of daylight down the tube. This becomes increasingly important when light levels are low, such as in the early morning or late afternoon, on overcast days, or during winter months. At these times, the reflected daylight may make hundreds of bounces down the tubing. Because Spectralight Infinity has such a high Light Transfer Efficiency (LTE), daylight can be transmitted over long distances with minimal light loss to provide consistent illumination, regardless of season or weather condition.
In other systems that use tubes with lower reflectivity, so much light is lost (some as high as 16% with each bounce!) that little usable light remains by the time it travels all the way down the tube.
In addition, Spectralight Infinity Tubing also has a high Color Temperature Maintenance (CTM), which means it delivers the true color of the daylight with no color shift. Other tubing materials are not only less effective at reflecting light but are not “spectrally-neutral,” meaning that they can shift the color of the light significantly.
The end result is that you get maximum light output with no significant color shift for the brightest, cleanest natural light possible.
*Specular reflectance greater than 99%, with wavelength-specific reflectances up to 99.7% for the visible spectrum