High-Pressure Sodium Grow Lights & Plant Sunburn: What You Need to Know

High pressure sodium grow lights, often used in horticulture lighting setups, primarily emit light in the orange and yellow light bands. While they deliver sufficient lighting energy for plant growth, they do not contain significant amounts of the damaging ultraviolet (UV) radiation that is usually associated with sunburn in humans. UV radiation is present in other light sources like the sun.