What is light?
What is light?
Light is electromagnetic radiation, a form of radiant energy that propagates through space in the form of waves. The radiant energy associated with these waves exists in small energy packets known as photons.
Knowledge
Knowledge items
Light – terminology
Light – terminology
When discussing light, various terms are commonly used, such as PAR, PPFD, and DLI.
Light measuring protocol
Light measuring protocol
This protocol describes how assimilation light in greenhouses should be measured. This protocol is a revision of a light measuring protocol published in 2010 in Dutch, incorporating the significant changes in lighting technology that occurred in the last 15 years.