Growers generally have two options when it comes to LED per orticoltura spectrums – "full spectrum" or "ampio{0}}spettro", quale appears as white light; and "spettro rosso/blu", which can appear as purple or pink light.
Il LED dello spettro rosso/blu luminaires are often referred to as narrow band spectrum lights – because the wavelengths they emit are within a narrow band of light. LED luminaires that emit a "white" light are often referred to as "broad spectrum" or "full spectrum" leggeros because they includere un ampio band dello spettro luminoso (più simile al sole) which renders a "white" light (there are no true white wavelengths).
It should be noted that essentially all "white" LEDs are blue LEDs that are coated in a phosphor that converts the blue light into longer wavelengths. The phosphor absorbs the blue light and re-emits some or most of the photons into green and red light. This coating reduces il efficiency del LED in converting photons into usable PAR (photosynthetically active radiation) leggero, but makes for a better work environment in sole source applications. The composition of the phosphor coating will help to determine the spectral quality of the white light emitted. To find the efficacy of your luminaire, you will need to divide the Flusso di fotoni fotosintetici (PPF) of the apparecchio di illuminazione, di its input wattage. The resulting efficacy valore, sarà represented in μmol/J. The higher the number, the more efficient the luminaire is at converting electrical energy into photons of PAR.
Red/Blue LEDs
The "purple/pink" LED luminaires that many associate with horticultural lighting, utilizzo varying combinations of red and blue PORTATOs, and are recommended per greenhouse growers who are already receiving the full spectrum of light from the sun. Since photosynthesis peaks in the red and blue wavelengths it makes this spectrum, not only the most efficient for plant growth, but also the most energy efficient. From this perspective, if you are already getting full spectrum sunlight from outdoors, it would make the most sense to put most of your energy into wavelengths that are most optimal for photosynthesis, and where you will see the biggest energy cost savings. This combination is more energy efficient than "white" or full spectrum LEDs because blue and i LED rossi hanno la più alta efficacia fotonica rispetto ad altri colori i.e. they convert the highest amount of electricity in photons, so you are getting more growth from your plants per dollar spent.
So, why do we need a combination of red and blue to grow plants, why can't we use just blue or just red LEDs? While red is most efficient for photosynthesis, having only red light would result in poor growth such as very elongated stems, so blue is added to keep plants compact and a more typical shape. On the other hand, you can't grow plants under only blue light either, as their growth and development will be adversely affected. Researchers have found over the years, that having a combination high red light to a lower percentage of blue light has been shown to be ottimale for the production di colture in serra that are already receiving light from the sun. Since there è no "ideal spectrum" for greenhouse raccolti, most LED manufacturers offer a fixed ratio of red to blue that has been considerato the most optimum for horticultural crop growth and production.
Se sei un coltivatore in serra che cerca di installare i LED, ti consigliamo our HortiLED Top 2.0 rosso bianco (medio Blu) spectrum. This LED spectrum has a softer pink colore, making it easier to work under and grade impianti, than purple light, and has a high efficacy rating of 3.3 μmol/J―riducendo il consumo di energia fino al 40% rispetto ai tradizionali sistemi HPS. I coltivatori trovano che offra un'ottima resaè―either as a standalone LED installation or in a hybrid application (HPS-LED combination)―across all stages of growth for molte colture comprese le colture di vite, ornamentaliS; frondoso greens and cannabis.
Completo-Spectrum "White" LEDs
While in a greenhouse, the outdoor sunlight will balance out the "pink or purple" light emitted from LEDs, the same spectrum in a sole-source, interno application fornisce una sp limitataectrum di luce al raccolto e può essere unpleasant to work under. Therefore, many indoor growers have shifted away from spettro ristretto LEDs, to "white" ampio spectrum LEDs.
Broad spectrum LEDs have a lower efficacy than red/blue LEDs due to conversion, energy, and optical losses within the phosphor conversion process. However, since in interno applications where the luminaires are the suola source of light, bspecifica della stradatRum LED luminaires are far better rispetto al rosso/blu da allora they emit a wide range of wavelengths for your crop throughout the different growth stages. This is important because as we do more research, we are discovering that wavelengths such as green, which were previously thought of as not very useful, are proving to be important in photosynthesis and certain morphological responses. Additionally, many full broad spettro luminaires can also emit energy in the far-red region, which can help promote stem extension and leaf expansion.
In unn environment with only red/blue light, workers will not be able to properly identify problems such as nutritional deficiency, malattie and pests. So broad spectrum light is not only more pleasing to the eye, but also makes it easier to work and assess plant health.
Quindi, mentre è possibile utilizzare un LED rosso/blu in applicazioni a sorgente unica, con la salute umana e plant scouting being affected, we highly recommend using a ampio spettro LED. For growers in sole source applications, we offer a "daylight" spectrum option with the HortiLED I primi 2.0―ideal for growth of indoor crops such as cannabis and leafy greens.
