When talking about light spectrum we’re talking about the spectrum of colors within light. Sunlight has the full color spectrum with all the colors of the rainbow. Plants flourish under red and blue light as the leaves absorb the most energy from these wavelengths.

Learn all about growing and lighting:

• The Cannabis Light Cycle
• Control Your Lighting, Control Your Cannabis
• How Much Sunlight For Outdoor Marijuana Plants

More lighting related terms:

Lighting | Light cycle | Dark cycle | Light shortage | Light distribution | Blue light | Red light | Nanometer | Light tight | Lumen | Lux | Reflecting light | Lamp height

HPS lights | HPI lights | LED lights | Compact fluorescent lights