Solatube Daylighting Systems use a proprietary capture-transfer-deliver process that brings the optimal amount of natural light into building interiors. By combining breakthrough optical technologies with progressive engineering, our products deliver powerful performance for any application.

Breakthrough Technology


Maximized Capture
Advanced Dome Optics

Advanced optical domes capture daylight using proprietary rooftop technologies that harvest low-angle morning, afternoon, and winter daylight to increase light output.

RaybendeR® 3000 Technology

A patented daylight-capturing Fresnel lens that:
• Redirects low-angle daylight for maximum light capture
• Rejects overpowering summer midday sunlight and heat
• Provides consistent daylighting throughout the day
• Comes standard with Brighten Up Series models, the
Smart LED System, and the SolaMaster 750 DS model


RaybendeR HD Technology

An extensive, patented daylight-capturing micro-lens that:
• Increases the harvest of low-angle light for maximum collection capacity
• Boosts light output under marginal daylight conditions and winter months
• Extends daylight delivery during low-light hours of the day
• Works with LightTracker Technology to increase harvesting of low-angle light rays
• Comes standard with the SkyVault Collector


LightTracker™ Technology

An innovative in-dome reflector made of Spectralight® Infinity material that:
• Redirects low-angle morning, afternoon, and winter daylight for maximum light capture
• Increases light input for greater light output
• Delivers unsurpassed year-round performance
• Comes standard with Brighten Up Series models, the Smart LED System, the SolaMaster 330 DS model, and the SkyVault Collector.

Efficient Transfer
The World’s Most Reflective Tubing

Proprietary Spectralight Infinity Tubing transfers maximum daylight from rooftop to ceiling with minimal light loss and perfect color rendition. Built-in Cool Tube Technology features spectral filtering properties to provide maximum specular reflectance of visible light while preventing infrared light from entering the building interior.

Spectralight Infinity Tubing

Tubing made of the world’s most reflective material that:
• Delivers 99.7%* specular reflectivity for maximum daylight transfer
• Provides the purest color rendition possible so colors are truer and brighter
• Allows for lengthy tube runs and 90 degree turns to deliver daylight to lower floors
• Delivers the visible spectrum of light with minimal solar heat gain

*Specular reflectance greater than 99% with wavelength specific reflectance up to 99.7% for the visible spectrum



Versatile Fixtures and Diffusers

Specially designed optical lenses evenly disperse daylight throughout the area to reduce glare and provide visual comfort. Powerful options let users control light output.

Engineered Light Diffusion

Optical lenses and lighting control options combine to:
• Create a location-specific, controlled visual effect
• Provide visual comfort
• Deliver superior diffusion
• Provide total control with LED, dimming, ventilation and nighttime lighting options*

*Options not available with all models.

The Solatube Advantage

While the individual components of Solatube Daylighting Systems are designed to perform at the highest level, they are also engineered to work together. Each part enhances the performance of other modules in the system to produce the most effective and advanced Tubular Daylighting Device (TDD) on the market. That’s the Solatube Advantage.

Light Transfer Efficiency
Light Transfer Efficiency (LTE) relates to the amount of light that travels through a TDD daily, seasonally and between multiple floors. Raybender and LightTracker Technologies in combination with Spectralight Infinity Tubing allow Solatube Daylighting Systems to enhance light transfer efficiency by maximizing the collection of low-angle rays. They also minimize light loss as daylight is transferred down into the interior space below. This results in the industry’s longest tube runs with optimal light output and minimal seasonal variation.


Light Output of Various Tubing Materials

Color Temperature Maintenance
Color Temperature Maintenance (CTM) measures how effectively a daylighting system delivers reflected light without a color shift. Solatube Daylighting Systems perform well in this area, thanks to Spectralight Infinity Tubing and its “spectrally-neutral” properties. This allows it to reflect all the visible wavelengths equally well, so light color doesn’t change as it travels down the tube. As a result, Solatube Daylighting Systems deliver the brightest, purest daylight without a major color shift over the course of the day and throughout the year. The daylight delivered to the interior is the same color temperature as the daylight outside. Our tubing also provides perfect color rendition, so colors appear in their true state. As an added bonus, the UV-inhibitors built into the dome ensure interior colors will never fade.


colors can shift significantly depending on the tubing material used in a tdp.

Solatube International pioneered the use of detailed IES photometric data files for analyzing interior daytime illumination of tubular daylighting devices (TDDs). A measure of the distribution of light, photometry is a critical element in developing a TDD-based solution that delivers highly effective and visually comfortable natural light to building occupants. Using relative photometry, light output from any Solatube product configuration can be simulated for thousands of weather data sites for any time of the year or on an annualized basis. The unique, highly advanced optical technologies and design features of Solatube Daylighting Systems produce a predictable level of output, optical control, and user-adjustability of daylight that are unparalleled in the daylighting industry.

Light to Solar Heat Gain Ratio
Light to Solar Heat Gain Ratio (LSG) compares Visible Transmittance (VT) and Solar Heat Gain Coefficient (SHGC). The ratio reveals how well a daylighting product transmits useful visible light rays while filtering out problematic heat-carrying infrared rays. Solatube Daylighting Systems create the ideal balance between VT and SHGC to deliver pure, bright daylight without the added solar energy that can cause heat buildup and force air conditioning units to work harder.

In fact, our daylighting systems offer energy performance that is more than double that of other natural lighting products. This is due to proprietary Raybender Technology and Spectralight Infinity Tubing, which features Cool Tube Technology. This combination makes it possible to deliver only the visible spectrum of light while filtering and dissipating infrared rays. The result is maximum light and minimal heat gain. Thermal breaks designed between the flashing and tubing ensure heat is not conducted from the roof to the interior.


The Solatube Design Calculator simplifies daylighting design by estimating light output quickly and easily.

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