Ultraviolet Light (UV)
Ultraviolet light is comprised of three different wavelength ranges of light. UVC (200-280nm) has the shortest wavelength and most energy, but is potentially the most stressful to plants and human skin causing sunburn and can be very damaging to human eyes. Fortunately, for humans and plants atmospheric absorption eliminates the majority of UVC shortwave light.
UVB (280-315nm) has a short wavelength, high energy and also causes sunburn in humans and plants. UVB is known to damage protein and nucleic acids in plant cells, causing decreased metabolism and decreased number of flowers. UVB can have positive effects for plants as well. Medicinal plants responds to the stress and sunburn from UVB wavelengths, by creating it’s own sunscreen in the form of trichomes. The more trichome production the higher the THC, CBN and CBD levels.
Exposure to UVB radiation is also known to reduce a plants biomass, plant height and leaf area, but increase leaf thickness, terpene and resin production. Medicinal plants cultivators who’s main goal is to boost the amount of fragrant enhancing terpenes and oils for edible, tincture or waxes, rather than focus on high yields may choose lighting such as Metal Halide that provides some level of UVB radiation or supplement their current lighting with UVB reptile lights.
Finally, UVA and near ultraviolet light (315-400nm) has the longest wavelengths of UV light and can be very beneficial to plant development. UVA has also been shown to increase the amounts of THC, CBD, and terpene production in medicinal plants plants, without the negative effects of UVB. Wavelengths in the UVA spectral range are included in the absorption spectrum, particularly in the 380nm range. The absorption spectrum is the range of wavelengths of light that are absorbed by green chlorophyll for photosynthesis. Additionally, research has shown that exposing plants to UVA light can also inhibit mold growth and fungal development.
Far-Red and Infrared Light
On the far end of the spectrum (>700nm) you find far-red and infrared wavelengths of light. Far-red and infrared light have very long wavelengths, and very little energy. Infrared wavelengths are not visible to the human eye and only can be felt as heat. We know that blue and red light is optimal for plant development, but research conducted in 1957 has shown that combining blue light and red light with far-red/infrared light (700-760nm), led to an increased rate of photosynthesis due to the Emerson effect. The protein Phytochrome is the only known receptor that is sensitive to far-red/infrared wavelengths. Plants use Phytrochrome to regulate when a plants is to switch from vegetation state to flowering, and the time of flowering, due to the length of daylight or exposure to artificial light.
The appropriate amounts of far-red and infrared light can also be a very effective at promoting robust stem growth, proper node spacing, and more flowers and fruit. Too much IR radiation can also be an issue because to plant the majority of IR radiation is felt as heat. Growers who use traditional 1000W HPS lighting, which produces excess heat through IR radiation, have to install and operate expensive HVAC systems to mitigate the heat. Too much IR radiation can cause plants to stretch spreading out the plant nodes, can discolor the leaves or even kill the plants. Choosing a light with the right appropriate amount of far-red and infrared light is key for healthy and natural plant growth.
Platinum LED combines intense and efficient PAR output, with a targeted spectrum that include UVA and far-red/IR light. Platinum LEDs include UBA diodes in the 380nm spectral range that is known to promote robust yields for most plant types, and high terpene, THC, and CBD production for medicinal plants. It also provides far-red/c IR in the 760 nm range that is ideal for robust stem growth, proper nodes spacing, more flowers and fruit. The success that our customers have achieved, leads us to believe that this combination gives you the most prolific and healthy plants, that flower more often, with larger more bountiful blooms.
Here are three best LED grow lights with UV IR:
ECO Farm MB4 880W Master/Station Spectrum Dimmable Samsung +Osram Chips UV IR LED Grow Light Strips
- ECO Farm Master/Station version foldable LED fixture, with 8 bars, could evenly cover 4’X4’ and 5X5’ area.
- Actual 880W light, provide powerful and quality light to the plant.
- High-efficiency full spectrum light strips:
The full-spectrum led grow light is optimized for rapid growth and complete plant development. Using Samsung white chips and Osram red chips, could up to 2.8 μmol/J, PPF up to 2184 μmol/s.
- Master version light with built-in LCD color screen, showing the detailed status of the fixture and its group members. Such as dimming percentage, wattage, amps, PPF value, spectrum, timer status.
- Highlight: Built-in a control system on Master, with a step-less dimmer and five-step timer. One Master can control up to 50pcs of Stations. In other words, any changes made in Master will sync across all the connected Stations.
- Spectrum Tunable. There are four types of spectrum built-in this fixture, it provides a suitable spectrum for different stages of medicinal plant growth, such as V1 for VEG stage, F1 for the flowering stage, FS for the last two weeks of flowering.
- UV/IR enhanced bars was easy to install/uninstall from the fixtures. Item was our most creative mechanism design that enables you the most time-saving and convenient way to install the fixture.
- Note: Our lights contain UV IR by default
ECO Farm ECOZ Series 250W/510W/700W/1000W Samsung LM301H Chips LED Grow Light Strips With Separately UV+IR Control
- ECO Farm ECOZ 250W/510W/700W/1000W series light with top-bin Samsung LM301H chips (5000K+3000K)+Osram (660nm+730nm)+Refond (395nm), offering all the necessary light effiency to your medicinal plants in whole growth stages - from VEG to Flower
- Adjustable full spectrum 3 channels dimming way, each channel can be controllable separately.
- UV IR seperately control
- Passive cooling, no noise operation.
- Higher yields and lower cost: ECO Farm ECOZ series delivers powerful light output and uniform canopy penetration to resulting maximum higher yields.
- 'Plug & play' fast installation design makes your grow way easier with lowest maintenance cost and easy installation, specially big saves on shipping.
ECO Farm 480W/640W/800W/1000W Dimmable LED Grow Light Full Spectrum With Samsung 301 Chips+ UV+ IR
- ECO Farm dimmable LED hydroponic grow light full spectrum with samsung 301 chips +UV+ IR, providing powerful light output and enhancing canopy penetration to resulting in higher yielding footprint.
- The ECO Farm Samsung LED grow light features a balanced spectrum with best possible LED diodes available. Optimized plants growth at every stage of its development, from seeds to harvest. Convenient dimmer knob brings more flexibility for growers to adjust brightness to match plants' each growing phase needs.
- ECO Farm offers higher PPFD and uniform PAR output to maximize crop yields.
- No fans zero noise. With high safety performance and reliable UV certified driver, thick aluminum heat sink and waterproof glue coating panel, high quality grow light ables indoor growers to achieve their growing targets all year round.
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