LEDs

Now we're happy to show it via our screens: here's the Arize Lynk². "Our next generation indoor vertical farming fixture," Colin Woodford with Current ...

The lighting company LumiGrow has ceased operations and is now out of business.  LumiGrow was a company focused on LED lights, and it hit the headlines at the beginning of 2020 for the purple glow that illuminated the sky over Navajo County, Arizona, which was coming from a cannabis greenhouse where LumiGrow…

What’s the best ROI when it comes to grow light technology? We break it down in our latest Guide where we overview HPS, LED and Hybrid lighting technologies to help you decide which is best for your application! Get it now at bit.ly/3iLIbCX pic.twitter.com/TQqZfRazX1

While light-emitting diodes have provided botanists with the ability to generate precisely controlled SPDs for their research, the use of colloquial color names in their published papers has made it difficult to interpret and summarize their research results for the horticultural industry. This paper…

"Signify’s expanded GrowWise Control System helps growers boost operational efficiencies. This allows for full dimming for Philips toplighting compact in greenhouses. Besides, it enables growers to plan and automate light recipes one year ahead and to control the grow lighting through their climate…

... LED lights for greenhouses, vertical farms, and other indoor harming types. ... Grow can be seen as an alternative farming method that uses lesser ...

LED and HPS luminaires affect leaf and air temperature differently, which can have a profound effect on your crop. Learn more on the differences between these two technologies and how it might affect the outcome of your plants at bit.ly/2Jrq58T pic.twitter.com/jOU093X5Gr

Posted by P.L. Light Systems (PLlight) on Wednesday, January 20th, 2021 1:13pm

Using specialised LEDs to assist crops grown in greenhouses has become common, and "vertical" farms in cities grown entirely with LEDs are a new ...

There is a widespread misconception that the taste of vegetables is solely based on genetics of the plant species and cannot be enhanced by cultivation techniques or environmental conditions. "That would be true in a scenario where other cultivation parameters were universally normalised," the team with…

Over the last decade, LED lighting has gained considerable interest as an energy-efficient supplemental light source in greenhouse horticulture that can change rapidly in intensity and spectral composition. Spectral composition not only affects crop physiology but may also affect the biology of…

Agromeans has recently developed proprietary lighting modules that aims to solve the three main problems faced by indoor farmers – high cost of electricity, cost of labor, and faulty predictions. Agromeans is showcasing its latest product at CES 2021 along with the 100 featured Taiwan startups selected…

This year, Dutch Berries invested in the build of four hectares of greenhouse with full LED lighting. With that, the large strawberry grower from Zuilichem, Netherlands is able to produce large volumes of a fresh, new species for the market. By growing an increasing amount of varieties as well, year…

Several years ago, the horticultural sector has started to use LEDs as artificial light systems. However, developments were still needed in terms of efficiency. With a smart combination of new LEDs, steering and cooling technology, Climalux is making headway with the CLX V1000: an artificial lighting…

LED lights are being used more and more in the horticultural industry, most often as grow lights. Yet now the Spanish company ATG Ingeniería has launched a tool in what LED lights are being used as crop protection. "Biocaptur S50 is the first biological control device against Tuta Absoluta," they say…

Approaching the end of a very shaky 2020 from a general business perspective, we went looking for horticultural market data that might show that sector to have overperformed relative to business in general and that might portend positive opportunity for players in horticultural lighting and AgTech. S2G Ventures has published…

Woody small fruit (such as blackberry and raspberry) is increasingly being grown in a tunnel or a greenhouse. This makes it easier to control the crop. Moreover, heavy rain showers, for example, cause much less damage. The Greenhouse Horticulture and Flower Bulbs Business Unit of Wageningen University &…

Growers generally have two options when it comes to horticultural LED spectrums – “full spectrum” or “broad-spectrum”, which appears white light; and “red/blue spectrum”, which can appear as purple or pink light.    The red/blue spectrum LED luminaires are often referred to as narrow band spectrum lights – because the…

Energy gained from the water-cooling, is enough to supply 50% of the required heat for a typical #greenhouse!

#oreon #efficiency #LEDlightgrow pic.twitter.com/BpZMCH1PMq

Albuna Farms has chosen to install Philips GreenPower LED interlighting to grow lights in its greenhouse in Ruthven, Ontario. During the first phase of the project, Philips GreenPower LED interlighting grow lights will be installed on 4.7 hectares in their greenhouse. Albuna Farms expects the new system…

When switching to LEDs, your electricity bill will lower and your heating bill will increase. Sounds fair, and most growers are completely aware of this. But by how much? That's often unclear, even when the LEDs have already been installed. "Since electricity is measured in kwH and gas is measured in…

Are all LEDs created equal? In our latest blog, we go over 6 things a grower should look for when researching LED luminaire manufacturers. pllight.com/are-all-led-cr… pic.twitter.com/QvRUZQOwmj

In this study, we sought to evaluate and compare the effects of constant and dynamic lighting on red and green leaf lettuce (Lactuca sativa L. Red Cos and Lobjoits Green cos) cultivated in a controlled environment. Plants were illuminated with the combination of red 662 and 638 nm, blue 452 nm, and far-red 737 nm at 16 h photoperiod and constant daily light integral (DLI) of each component. Five constant or dynamic lighting treatments were performed: (BR) constant flux of both B452 and R662; (B*R) constant flux of R662, but the DLI of B452 condensed in 8 h in the middle of photoperiod doubling the PPFD of blue light; (BR*) constant flux of B452, but the DLI of R662 light condensed in the middle of photoperiod; (BdynR) constant flux of R662, but the flux of B452 varies in the sinusoidal profile during 16 h photoperiod, imitating diurnal increase and decrease in lighting intensity; and (BRdyn) constant flux of B452, but the flux of R662 varies in sinusoidal profile. The lettuce’s response to dynamic lighting strategies was cultivar specific. Dynamic lighting strategies, mimicking natural lighting fluctuations, did not have a remarkable effect on photosynthesis and antioxidative parameters, but the dynamic flux of blue light component had a pronounced effect on higher macro and microelement contents in lettuce leaves.

When temperatures are dropping, growers can reuse dissapated heat from the water cooled LED fixtures to heat the ponds and therefor make full use of the energy consumption of the LED fixtures. #ledlightgrow #ledgrowlight #greenhouse #teeltvijvers #hydroponicgreenhouse #basil pic.twitter.com/MiGqH0Zpv3

Growers have a wide range of different business and cultivation goals, meaning that every grow light solution is unique. "LED grow light is increasingly used in existing greenhouses, so the LED fixtures have to fit seamlessly with the grower’s existing situation and new requirements. For this reason we…

Plants and more generally, photosynthetic organisms need light to live. Exposed to artificial light, plants implement adaptation processes. All these adaptation strategies are studied in agronomic research and plant biology laboratories, in particular at CEA Cadarache, within the Institut de Biosciences…

Light recommendations for horticultural crops often focus on the optimal daily light integral (DLI) without regard to how that light is delivered throughout each day. Because photosynthesis is more efficient at lower photosynthetic photon flux density (PPFD), we hypothesized that longer photoperiods with…

LED red (R) and blue (B) continuous light (CL) is a potential efficient way to increaseplant productivity of plant factory with artificial light (PFAL), but limited information wasexplored about their effects on plant mineral nutrition. In an environmentally controlled plantfactory with artificial light (PFAL), the effects of CL of different intensities and spectral qualities,emitted by R and B LEDs on growth and nutrient element content and accumulation of lettuce(Lactuca sativa L.), were conducted in three hydroponic experiments. Two treatments, normal light(12 h/12 h) and CL (24 h/0 h) in experiment 1, three CL intensities (100, 200 and 300 μmol∙m−2∙s−1) inexperiment 2, and three CL light qualities (1R:3B, 1R:1B and 3R:1B) in experiment 3 weredesigned. The results showed that CL significantly increased the fresh and dry lettuce shootbiomass compared with normal light, and shoot fresh and dry biomass increased with theintensity increment of CL. In experiment 3, shoot fresh biomass was great under high R lightproportion CL treatment, while dry shoot biomass remained unchanged. Both CL and CL withincreased intensities promoted shoot C content and accumulation in lettuce. CL reduced N, P, K,Ca, Mg, Cu and Zn contents in lettuce shoot, while Fe and Mn contents did not change comparedto NL. Moreover, CL increased Ca, Fe and Mn accumulation.

Light recommendations for horticultural crops often focus on the optimal daily light integral (DLI) without regard to how that light is delivered throughout each day. Because photosynthesis is more efficient at lower photosynthetic photon flux density (PPFD), we hypothesized that longer photoperiods with lower PPFD results in faster growth than shorter photoperiods with higher PPFD and the same DLI. We quantified the effect of different photoperiods, all providing the same DLI, on photosynthesis and growth of two leafy greens. Mizuna (Brassica rapa var. japonica) and lettuce (Lactuca sativa) “Little Gem” were grown from seed in a controlled environment chamber (20 °C and 819 µmol·mol−1 CO2) under six photoperiods (10, 12, 14, 16, 18, and 20 h). LED fixtures provided white light and PPFD was adjusted so each treatment received a DLI of 16 mol·m−2·d−1. Mizuna and lettuce were harvested 30 and 41 days after planting, respectively. Longer photoperiods with lower PPFD increased light interception, chlorophyll content index, quantum yield of photosystem II, and aboveground biomass, but decreased instantaneous CO2 assimilation of lettuce and mizuna. Aboveground biomass increased 16.0% in lettuce and 18.7% in mizuna in response to increasing the photoperiod from 10 to 20 h.

GoodLeaf Community Farms in Canada selected Signify to equip its new state-of-the-art farm with Philips Horticulture LED lighting. As a branded producer, GoodLeaf grows and packs fresh, nutritious, and pesticide-free micro and baby greens year-round. The company operates a 4,000-square-metre indoor vertical farm in Guelph, Ontario, which is now fully operational to supply some of the largest Canadian retail chains. GoodLeaf is backed by McCain Foods as its strategic investor.

From the outside, the gray and white warehouse near the corner of Oris Street and Mona Boulevard seems like a thousand other mundane Southern California buildings. But the interior, once completed, will resemble a sketch from a futurist's daydreams. If all goes well, the 95,000-square-foot Compton…