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

October 17 2018

Press Release: ONCE Director of Biological R&D is Speaker at IA Egg Symposium

PLYMOUTH, MN (September 18, 2018) – Dr. Aaron Stephan, Director of Biological R&D at Once Inc. (ONCE), will present Basics of Lighting in Lay Farms at the Iowa Egg Industry Symposium next month. The single-day symposium will touch on an assortment of topics pertaining to layer management including genetics, vaccination, management and flock biosecurity. Stephan will […]

September 20 2018

Press Release: ONCE Announces New Chief Operating Officer

MINNEAPOLIS, MN (September 20, 2018) – ONCE®, the world’s leading supplier of research-based agricultural lighting systems, announces Luke Dohmen as Chief Operating Officer. Dohmen joined ONCE in 2017 as General Counsel, Chief Patent Officer where he played a key role in the company’s plans to acquire Germany-based iLOX GmbH and its Polish subsidiary iLOX®​ Sp.z.o.o., […]

September 07 2018

Considerations for Temporal Light Modulation in Poultry

The term “Temporal Light Modulation” (TLM) is defined as a variation in light intensity over time. In nature, sunlight varies as the sun beam angle changes over the course of the day, as clouds pass in front of the sun, and as leaves from trees sway in the wind, causing intermittent light to reach the […]