
FAQ About Indoor Plant Lighting Solutions

What are PAR and lumen, and how do they relate to plant lighting?
PAR (Photosynthetically Active Radiation) is the light spectrum that plants use for photosynthesis, while lumen measures the total visible light output from a source. While lumen indicates brightness to the human eye, PAR is more critical for assessing a light source’s effectiveness for plant growth, as it gauges the usable light spectrum.