Ketra Introduces Lighting Technology that Perfectly Mimics Sunlight, Offering Wellness, Quality-of-Life Benefits to Indoor Occupants

New Study Reveals Consumers Connect Exposure to Natural Light With Positive Impact on Mood, Productivity, Alertness, and Brain Function

AUSTIN, Texas, May 1, 2017 - Recognizing that the best light comes from nature, Ketra has developed the most advanced lighting system in the world that precisely mimics the color temperature and intensity of Natural Light. Ketra LEDs dynamically shift throughout the day, providing the full range of sunlight - crisp and bright during the day, soft and warm at night. The inventive lights provide wellness benefits of Natural Light to indoor occupants, synchronizing their circadian rhythms to support better health and rest.

Building on its successful results of providing Natural Light to impressive commercial spaces with brands that include Google, Pinterest, Whole Foods Market, and more, Ketra is introducing its proprietary solutions to the high-end residential market. The launch responds to a growing interest for high-quality light that not only offers an elegant design statement, but also contributes to the wellness of those inside the space.

In fact, a recent survey commissioned by Ketra and conducted by Harris Poll reveals that nearly 9 out of 10 Americans (89%) say that exposure to natural light has a major/moderate positive impact on mood, while 87% say that exposure to natural light has a positive impact on productivity, alertness, and brain function. Nearly 8 in 10 Americans (79%) say that they wish they were able to spend more time outdoors during the day to get more exposure to natural light.

The survey also signals a market appetite: Nearly 3 out of 4 Americans (73%) say that they would pay more for light bulbs if they knew the bulbs would have a positive impact on their health.

"From the beginning of time, humans have evolved under two natural light sources: the sun and firelight. Light from these sources aids in regulating physical processes and helps maintain mental wellbeing by aligning the human body's circadian rhythms," said Nav Sooch, CEO of Ketra. "As the survey data and bodies of other research reveal, natural light offers myriad wellness benefits. It stands to reason that today's commercial and residential spaces should offer this high-quality light indoors. Ketra does just that."

First-to-Market Technology

The ability to perfectly simulate sunlight, while maintaining consistency across every bulb in the space, is driven by the technology in each Ketra bulb. A proprietary semiconductor measures the bulb's color 360 times a second, continuously ensuring that the light output across every bulb in the space is the exact color temperature of natural light, measured in degrees Kelvin.

What's more, this industry-leading technology facilitates a longer lifespan of the product: Ketra light bulbs last up to 30 years in a typical home, significantly longer than standard LEDs. Ketra's offerings maintain the precise color control not only throughout their lifetime, but they maintain the exact output as each other, so all bulbs are always emitting the same exact amount of color and light, another edge over standard LEDs that typically vary in color and change color as they age.

A Complete Solution

Ketra is an integrated system of lighting, keypad interfaces, and software. The lighting products - light bulbs or "lamps," and luminaires - communicate wirelessly to interfaces to control the light.

Among the company's lighting products, the D3 Downlight portfolio offers several standout solutions - all exceptional options for new construction. The downlights are available with several trim options, including "mud in," a hidden trim; "pinhole," which enables a spotlight or narrow beam; and "wall wash," which is excellent for highlighting artwork.

The interfaces allow for simple transitions between preset settings at the command of an occupant or as a scheduled event, such as programming the bedroom lights to gradually turn on with the sunrise. The X2 touchpad is ideal for retrofit installations as well as new construction, as it fits within a standard wall box.

The user can also control lights from a smart phone or tablet via the Ketra app. The N4 Hub - a small, black box - works behind the scenes to wirelessly connect Ketra fixtures with the control interfaces.

A Spectrum of Capabilities

  • Home Automation: Integrates with home automation systems, shade control, security systems.
  • Personalized Light: Ketra's tunable-spectrum LED offers infinite color choices, including saturated colors as well as pastels. Easily adds color to the home without having to repaint - great for entertaining guests, kids' parties, and more.
  • Full Range of Dimming: Lights can be dimmed to very low light levels (0.1%) with no light flicker at any level. This is particularly beneficial for special occasions, like romantic dinners, or when one needs to navigate in the middle of the night. Other LEDs only dim to about 10%.
  • Circadian Benefits: Gradually eliminates blue content in your lighting as the day draws to a close, allowing your body to maintain ideal sleep patterns - and delivering beautiful, warm light in the evening.
  • Customized Keypads: Sleek and convenient control options that fit within any environment and style.
  • Mobile App: provides remote control for maximum flexibility.

To find a lighting showroom near you that distributes Ketra, visit

About Ketra

Ketra creates the highest quality, most accurate Natural Light in the world, and delivers the only advanced system of universally-compatible controls at an accessible price point. Ketra's proprietary technologies allow for unrivaled control and precision over the lifetime of its products, and make true Natural Light available on a global scale. With a cohesive system of lighting, controls, software and patented driver chip technology from a single manufacturer, Ketra's Natural Light is at the forefront of the health and wellness revolution for the built environment. Visit us at for more information.

Survey Methodology

This survey was conducted online within the United States by Harris Poll on behalf of Ketra from April 6-10, 2017 among 2,250 U.S. adults ages 18 and older. This online survey is not based on a probability sample and therefore no estimate of theoretical sampling error can be calculated. For complete survey methodology, including weighting variables, please contact



Beverly Basiga,

Tess Delaney,,


Web Site:

More from Sensors, Monitors & Transducers

All Topics

COVID-19 Response Suppliers COVID-19 Response:
Can Your Company Help Provide Critical Supplies?

We are using the power of our platform to aid in the mass shortage of critical supplies. If your company can help provide supplies, capabilities, or materials for products such as N-95 Masks and Tyvek SuitsPlease let us know.

COVID-19 Response Suppliers