Agricultural Lighting

ONCE® animal-centric lighting systems go beyond traditional LEDs by offering a SOLUTION designed to simultaneously improve production and animal welfare.


We research the science of light exclusively for the agricultural market and incorporate the findings into commercial patented technologies.


At ONCE®, we base our technology on decades of proven research so both the animals and your bottom line benefit, leaving you to feel confident with your informed decision.


By incorporating photo-biology into innovative technologies, ONCE® can minimize sudden changes in light and provide natural daylight simulation, reducing animal stress and improving welfare.


Every single day begins with a sunrise and ends with a sunset, but not every day is ideal.

It can be for your animals.

Latest News

May 20 2019

Signify acquires animal-centric lighting experts Once Inc. and iLOX to capture attractive growth in agricultural lighting

May 20, 2019 Eindhoven, the Netherlands – Signify (Euronext: LIGHT), the world leader in lighting, expands its business for agricultural lighting as it acquires Once Inc., based in Plymouth, Minnesota, and iLOX, based in Vechta, Germany. ONCE and iLOX are market leaders in the design and manufacturing of animal-centric lighting. These tailor-made lighting systems improve […]

May 01 2019

UV Germicidal Chambers – Best Practices from the University of Minnesota

The Swine Disease Eradication Center at the University of Minnesota's College of Veterinary Medicine developed a short video and a set of hand-outs to show the dos and don'ts of UV germicidal chambers. The video can be watched here and the handouts can be found on their website: Learn more about ONCE® BioShift® UV-C Chambers [...]
April 24 2019

One minute, three minutes, or ten minutes – Oh my, it’s actually five minutes

Our team is regularly asked why some sources* suggest exposure for one minute, three minutes or up to ten minutes when using ultraviolet germicidal irradiation (UVGI) to eliminate viruses on an object, when we recommend a set five minutes, or 300 seconds. This answer is easy and we want to set the record straight once and for all.