Energy & Cost Modeling for Greenhouse Lighting: How to Calculate ROI When Switching to LED or Hybrid Systems
As energy costs continue to rise and greenhouse operators face increasing pressure to improve efficiency, many growers are evaluating whether now is the right time to transition from traditional high-pressure sodium (HPS) lighting to LED or hybrid lighting systems.
The challenge? The upfront investment can appear substantial.
Summer Spectrum Strategies: Optimizing Greenhouse Lighting Efficiency
The question is no longer whether to light during summer months, but how to light strategically — matching spectrum, intensity, and timing to seasonal sun conditions to maximize photosynthetic return per kilowatt-hour.
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 as Regional Sales Manager – Eastern USA.
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.
The ROI of an LED Retrofit: What CEA Growers Need to Budget in 2026
What an LED retrofit from HPS actually costs and returns, from rebates and payback to fixture count, heat load, and the cases where a hybrid still wins.
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
Challenges and Opportunities in CEA
P.L. Light Systems President and CEO Todd Phillips talks about the challenges and opportunities CEA will face in 2023.