The decisive advantages of the LED go well beyond substantial energy savings: Plants need a variety of different wavelengths of light, depending on the type of plant and the growth phase. In order to produce fruit, tomatoes and the like primarily need blue light, which makes up a large portion of natural sunlight and promotes photosynthesis. Modern lighting systems based on LED technologies can be specifically set to the respective necessary wavelength and thus provide each individual plant type with just the right spectrum of light.
This modern technology also makes it easy to flexibly adjust illumination intensity in urban farms, meaning that plants no longer have to work to extend their stems towards the sun in order to reach the vitally essential sunlight. They can devote their entire energy to bearing fruit and thus achieve higher yields than the fellow members of their species in the field under the open sky. The various wavelengths of the light emitting diodes even make it possible to create specific color in the plants themselves.
In order for plants of any sort to grow healthily in a greenhouse environment, the conditions there in need to be carefully regulated and controlled. Most importantly, they need to grow under the right temperature and light in order for photosynthesis to occur as naturally as possible.
LED grow lights, can employ specific spectra to match these peak absorption ranges. Special LEDs are therefore installed at the two wavelengths closest to the optimal values. This means that plant growth efficiency can be improved by using targeted wavelengths in order to ensure that as little as possible energy is lost during the process of plant growth.