Light Properties Ultraviolet(uv light => 100-400 nmLight Properties ➢ Ultraviolet (UV) light => 100 - 400 nm ➢ Photosynthetically Active Radiation (PAR) => 400 -- 700 nm • Violet => ~380 -- 455 nm • Blue => ~455– 500 nm • Green => ~500– 580 nm • Yellow => ~580– 595 nm • Orange => ~595– 620 nm • Red => ~620– 700 nm • Far Red => ~700– 775 nm ➢ Infrared => ~775– 100,000 nm