Humans see light through the lens of visible brightness, with eyes most sensitive to yellow and green wavelengths. Plants, by contrast, use chlorophyll and other photoreceptors to capture light in the red and blue ranges most efficiently. This fundamental biological…
Category: Research
Supplemental Lighting Hours by USDA Zone: Calculate Winter Greenhouse Light Needs
Winter arrives as a productivity crisis for northern US greenhouse growers. When December rolls around, natural daylight in the 13 northernmost states drops to an average of only 5 to 10 mol/m²/day, falling below 5 mol/m²/day in western Washington. Inside…
UL 8800 Horticultural LED Certification: Why It Matters for Greenhouse Safety
Greenhouse lighting operates in an environment that challenges standard electrical and safety assumptions. Your grow facility is warm, humid, and wet—sometimes flooded with irrigation mist or standing water. Workers spend hours in spaces flooded with intense, purple-tinted light designed to…