Not unlike skylights, daylight tubes are designed to bring sunlight through the roof and into the interior environment. They differ however, in being able to concentrate light, thus utilizing a smaller amount of ceiling space for the same amount of illumination. Their design also prevents UVA/UVB light from entering, virtually eliminating solar radiation and heat gain.
The new sun tunnel design by Velux takes this concept a step further by providing an additional diffuser which hangs below, allowing daylight to be bounced around a greater area and with softer effect. Because this is full spectrum light, interior spaces look brighter, and more cheerful. Studies have also shown a strong link between exposure to daylight and a persons sense of well-being and overall health, making the Sun Tunnel an even more worthy addition to any interior project.
I hope their success with this design will encourage Velux to add even more products that combine great design with sustainable living.