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.

Learn how you can improve animal welfare and experience optimal results by providing them with this natural part of life.

Latest News

June 20 2018

PRESS RELEASE: Agricultural Lighting Leaders Announce Acquisition, Reshaping the Future of the Market

MINNEAPOLIS, MN (June 20, 2018) – ONCE®, the world’s leading supplier of research-based agricultural lighting systems, announced today that it had reached a definitive agreement to acquire Germany-based iLOX GmbH (iLOX®) and its Polish subsidiary iLOX® Sp.z.o.o., an innovative lighting developer for agricultural livestock facilities. This strategic alliance integrates two industry leaders into the world’s largest animal-centric lighting company. “We are […]

June 05 2018

PRESS RELEASE: ONCE BioShift chamber stands up to real-world bio-security challenges

PLYMOUTH, MN (June 6, 2018) – ONCE®, the world’s only supplier of research-based agricultural lighting systems, has confirmed their BioShift® Pass-Through Germicidal UV Chamber can efficiently decrease the possibility of a porcine epidemic diarrhea (PED) viral outbreak. While previous research demonstrated the efficacy of the BioShift® to disable PED and Porcine reproductive and respiratory syndrome […]

May 08 2018

PRESS RELEASE: Breakthrough in animal welfare—UV-A environment enrichment

PLYMOUTH, MN (May 8, 2018) – Scientists at ONCE, in conjunction with two major US universities, have found that the addition of an Ultraviolet A (UV-A) spectrum into animal housing lighting reduces stress levels by a significant margin. This reduction of stress represents possibly the biggest breakthrough for poultry animal welfare in recent history.   […]