Young plants need lots of light to grow, but when started indoors, natural isn't always best. Learn seedling light ...

Should you start vegetable seedlings with natural light or T5 grow lights? Natural sunlight is a mix of all wavelengths, from those that plants can use to those that are of no use at all.

(1) Different types of electromagnetic radiation such as radio waves, microwaves, visible light, and x-rays are associated with specific wavelengths. A spectrophotometer is an instrument that performs ...