Growers generally have two options when it comes to উদ্যানগত LED spectrums – "full spectrum" or "বিস্তৃত-বর্ণালী", যা appears as white light; and "লাল/নীল বর্ণালী", which can appear as purple or pink light.
লাল/নীল বর্ণালী LED 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" আলোs because they একটি বিস্তৃত বিএ অন্তর্ভুক্তআলোর বর্ণালীর nd (সূর্যের সাথে আরো সাদৃশ্যপূর্ণ) which renders a "white" light (মere 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 দ্য efficiency মধ্যে LED এর converting photons into usable PAR (photosynthetically active radiation) আলো, 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 ফটোসিন্থেটিক ফোটন ফ্লাক্স (PPF) of the আলোক, দ্বারা its input wattage. The resulting efficacy মান, হবে 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 lighটিং, ব্যবহার varying combinations of red and blue এলইডিs, and are recommended জন্য 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 অন্যান্য রঙের তুলনায় লাল LED-এর ফোটনের কার্যকারিতা সবচেয়ে বেশি 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 সর্বোত্তম for the production এর গ্রিনহাউস ফসল that are already receiving light from the sun. Since there কোন "ideal spectrum" for greenhouse ফসল, most LED manufacturers offer a fixed ratio of red to blue that has been গণ্য the most optimum for horticultural crop growth and production.
আপনি যদি একজন গ্রিনহাউস চাষী হন LED ইনস্টল করতে চান, আমরা সুপারিশ করি our HortiLED Top 2.0 লাল সাদা (মধ্যম নীল) spectrum. This LED spectrum has a softer pink রঙ, making it easier to work under and grade গাছপালা, than purple light, and has a high efficacy rating of 3.3 μmol/J―প্রচলিত এইচপিএস সিস্টেমের তুলনায় 40 শতাংশের মতো শক্তি খরচ কমানো। চাষীরা এটি দুর্দান্ত রেসু প্রদান করে বলে মনে করেনlts―either as a standalone LED installation or in a hybrid application (HPS-LED combination)―across all stages of growth for লতা ফসল সহ অনেক ফসল, শোভাময়s; পাতাযুক্ত greens and cannabis.
সম্পূর্ণ-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, গৃহমধ্যস্থ application একটি সীমিত এসপি প্রদান করেফসল থেকে আলোর ectrum এবং হতে পারে unpleasant to work under. Therefore, many indoor growers have shifted away from সংকীর্ণ বর্ণালী LEDs, to "white" বিস্তৃত 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 গৃহমধ্যস্থ applications where the luminaires are the একমাত্র source of light, bরাস্তার বৈশিষ্ট্যtরাম LED luminaires are far better লাল/নীল থেকে 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 বর্ণালী luminaires can also emit energy in the far-red region, which can help promote stem extension and leaf expansion.
কn environment with only red/blue light, workers will not be able to properly identify problems such as nutritional deficiency, রোগ 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.
সুতরাং, যখন আপনি একমাত্র উত্স অ্যাপ্লিকেশনগুলিতে একটি লাল/নীল LED ব্যবহার করতে পারেন, মানুষের স্বাস্থ্য এবং plant scouting being affected, we highly recommend using a বিস্তৃত বর্ণালী LED. For growers in sole source applications, we offer a "daylight" spectrum option with the HortiLED শীর্ষ 2৷{1}}―ideal for growth of indoor crops such as cannabis and leafy greens.
