Lighting science, made practical.
Our goal at P.L. Light Systems is to share what we know and collaborate across the CEA community, building a foundation of knowledge on how lighting shapes the future of farming. Everything we publish here is written to give growers, research partners, and industry stakeholders information they can put to work.
Strategic Partnership of P.L. Light Systems Canada Inc. and Dutch Lighting Innovations Holding B.V.
P.L. Light Systems has completed a strategic partnership agreement with Dutch Lighting Innovations. Through this partnership, P.L. Light Systems is poised to…
Summer Spectrum Strategies: Optimizing Greenhouse Lighting Efficiency | Expert Article
The question is no longer whether to light during summer months, but how to light strategically — matching spectrum, intensity, and timing…
P.L. Light Systems Celebrates 45 Years of Horticultural Lighting Leadership in North America
P.L. Light Systems proudly marks its 45 years of service as a premium North American manufacturer of commercial horticultural lighting.
Why Plants See Light Differently Than Humans
Plants see light different than humans, and misunderstanding that difference can lead to inaccurate conclusions.
P.L. Light Systems Announces the Hiring of Matt Sauls as Regional Sales Manager – Eastern USA
P.L. Light Systems, a North American horticultural lighting manufacturer serving growers since 1981, is pleased to announce the hiring of Matt Sauls…
Winter Greenhouse Lighting: Why Supplemental Lighting Matters as Winter Drags On
Winter greenhouse lighting remains a critical part of protecting crops as growers push toward a potentially late start to spring.
Understanding Life Expectancy (L90B5) in Horticultural Lighting
Life expectancy rating of a horticultural lighting luminaire is one of the most important—but often misunderstood—factors to evaluate.
Measuring Transmissibility: Understanding How Much Light Reaches Your Crop
Measuring transmissibility is critical for accurately determining your supplemental lighting requirements.
P.L. Light Systems Announces the Hiring of Joey Viegas as Regional Sales Manager – Central & Western USA
P.L. Light Systems is excited to announce their hiring of Joey Viegas as Regional Sales Manager – Central & Western USA
Measuring Light Levels and Spectral Output: What you Should Know
Measuring light levels is one of the most valuable tools for ensuring your supplemental lighting system is performing at its best.
Dynamic LED Grow Lighting: The Future of Commercial Horticulture?
Dynamic LED grow lighting is emerging as one of the leading technological innovations in the controlled environment agriculture industry.
Replacing Your DE Lamps (Bulbs)
Replacing your lamps is critical because research shows every 1% increase in PAR light will see an equivalent increase in growth and…
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Guides, glossary, and downloads
Beyond the article library: crop-specific cultivation guides, a horticultural lighting glossary, and the full spec-sheet and instructions library.
Cultivation Guides
Crop-specific guides covering lighting strategy, DLI targets, and recipe selection.
Horticultural Glossary
PPF vs PPFD, DLI, µmol/J, photoperiod. The vocabulary every commercial grower needs.
Resources & Downloads
Spec sheets and product instructions for every fixture in the catalog, ready to download.
We engineer the plan before we quote the fixtures
Share your room dimensions, crop, and target DLI. Your regional sales manager returns a light plan with fixture layout, PPFD and DLI maps, and connected load.