The photosystem for photoreaction is composed of a variety of pigments, such as chlorophyll a (Chlorophyll a), chlorophyll b (Chlorophyll b), and carotenoids (Catotenoids). The main absorption spectra of chlorophyll a, chlorophyll b and carotenoids are concentrated at 450nm and 660nm, so in order to promote photosynthesis, Moon LED provide High Power LED and 3535 SMD LED in 450nm deep blue and 660nm deep red, which are mainly used in horticulture lighitng, and some white High CRI LEDs are combined to achieve high efficiency LED plant lighting. To specifically control the plants' flowering and growth, 730nm far red led is also commonly used. White color LED lights are also necessary for providing a human friendly working environment.
Therefore, a complete LED plant lighting program not only requires 450 nm blue light and 660 nm red light, but also requires 730 nm far red light.
With Moonleds High Power LED in Deep blue 450nm and deep red 660nm LED, the whole system can provide the spectrum required for photosynthesis, and far red 730nm LED can control the whole process of plants from germination to vegetative growth and flowering. In order to control the photomorphogenic effects on leaves and flowers, it is necessary to mix 660nm deep red led and 730nm far red led with a certain ratio.
Lumen efficacy (lm/w) is a misleading light value, which is a useless reference for horticulture lighting as plants are different from human being in radiation energy sensation. High energy efficacy in μmol/J, PPF, that is Photosynthetic Photon Flux, and PPFD, Photosynthetic Photon Flux Density, are the correct forms of evaluation.
