Horticulture Lighting Articles

  • Led grow light bar

    1. Urban Vertical ...

  • Choosing the Right Light for Young Plants

    Horticulture lighting research has been conducted on young plants (germination, seedlings, plugs and cuttings) for many years. Michigan State University published a series of articles in Greenhouse Grower (see references below) on bedding plant seedlings. In their research, Drs. Wollaeger and Runkle experimented with different LED wavelengths and compared them to fluorescent light on seedling ...


    By Illumitex

  • Novel p–n junction UiO-66/BiOI photocatalysts with efficient visible-light-induced photocatalytic activity

    Novel visible-light-induced UiO-66/BiOI photocatalysts with a p–n junction structure have been prepared for the first time through a facile hydrothermal method. The prepared photocatalysts were characterized using the powder X-ray diffraction, high resolution transmission electron microscopy, scanning electron microscopy, UV–visible diffuse reflectance spectra, and N2 adsorption–desorption ...


    By IWA Publishing

  • LED or HPS for Growing Cannabis?

    “What lighting source should I use for my licensed cannabis grow?”; “I am comparing LED to HPS for my cannabis operation. Which source do you recommend?” These are questions people ask me almost on a daily basis. We have covered this question in past posts on our blog, like this one by our very own head of marketing: LEDs vs ...


    By P.L. Light Systems Inc.

  • Demystifying Light Levels for Cannabis Grows

    As more and more investors, opportunists and growers are jumping onto the green rush that is the cannabis industry right now there is also a big influx of folks who are learning as they go.  Lighting is a major purchase for this industry as a big margin of growers still prefer the better climate control and security of growing indoors and even those who choose to grow in a greenhouse are ...


    By P.L. Light Systems Inc.

  • Demystifying Light Levels for Cannabis Grows

    As more and more investors, opportunists and growers are jumping onto the green rush that is the cannabis industry right now there is also a big influx of folks who are learning as they go.  Lighting is a major purchase for this industry as a big margin of growers still prefer the better climate control and security of growing indoors and even those who choose to grow in a greenhouse are ...


    By P.L. Light Systems Inc.

  • Shedding light on NO homeostasis: Light as a key regulator of glutathione and nitric oxide metabolisms during seedling deetiolation

    Abstract Despite the significant impacts of light on nitric oxide (NO) levels in plants, the mechanism underlying the influence of this environmental factor on NO metabolism remains poorly understood. A critical mechanism controlling NO levels in plant cells relies on the S-nitrosylation of glutathione (GSH), giving rise to S-nitrosoglutathione (GSNO), which can be either stored or ...


    By ECO PHYSICS AG

  • Increase greenhouse efficiency with boom lighting

    As a leader in greenhouse automation equipment, we are always looking to bring our growers new ideas on how to best utilize our equipment within their greenhouse. With the release of our highly coveted Universal Attachment, we are able to bring you new ideas on how to do more with less. The Universal Attachment is highly effective for attaching fans, insect mats, fans and lights. Boom lighting ...


    By Cherry Creek Systems

  • Case study - Wilmott Dixon Canopy

    BRE-Watford System kWp: 2.25 Area: 28.6 m sq Inverter: Mastervolt Modules Used: PS-C Transparent Polysolar designed and supplied a retrofit roof garden canopy for Willmott Dixon Healthcare Campus at BRE Innovation Park, Watford. Objective: To provide a weather proof canopy designed to offer a warm light but shaded area for sitting out in while also contributing to ...


    By Polysolar Limited

  • What is Nominal Length of LED Tubes?

    Nominal sizes serve as “general descriptions” for lighting manufacturers when identifying a range or category of products. The nominal size of a unit is typically not the same as the exact measurement of the product. Instead, the nominal size can be referred to as a standardized dimension for a set of or several units in the same series. ...


    By Larson Electronics LLC

  • KEUDA - Case Study

    KEUDA is the leading educational organization for gardeners in Finland what comes to led lighting. First trials with led´s were started in 2014. Several varieties and plants were tested and after 2 years of succesful growing tests two greenhouses were installed with all-led ...


    By Netled Oy

  • Härkälän puutarha - Case Study

    Härkälä nursery is locally a strong brand. In addition to company image of “locally grown”, the very high quality of Härkälä products keeps the customers happy. “We have long term focus in developing our production. We have been the first to introduce new technologies in climate control and other areas of cultivation. We operate the logistics ...


    By Netled Oy

  • TiO2 as an effective nanocatalyst for photocatalytic degradation of humic acid in water environment

    Photocatalysis with TiO2 is used to remove humic acid (HA) in a water environment under UVA and UVC light. The effects of operating parameters, including light intensity, HA concentration, catalyst dose, and contact time are investigated at neutral pH conditions. Results show that HA degradation increases with increasing contact time and light intensity and decreases with increasing HA ...


    By IWA Publishing

  • Grana-localized Proteins, RIQ1 and RIQ2, Affect the Dynamics of Light-harvesting Complex II and Grana Stacking in Arabidopsis

    Grana are thylakoid structures that are observed in land plants and in which photosystem II (PSII) and light-harvesting complex II proteins (LHCIIs) accumulates. We isolated two Arabidopsis mutants, reduced induction of non-photochemical quenching (riq1 and riq2), in which stacking of grana was enhanced. The curvature thylakoid 1a (curt1a) mutant was previously shown to lack the grana structure. ...


    By H Smith Plastics LTD

  • Q&A with Greenhouse Expert Theo Van de Sande

    Here at Illumitex we pride ourselves in not only our products, but our expert staff as well. Theo Van de Sande, our Senior Greenhouse Consultant, sat down with me to answer a few questions over greenhouse farming. But before we give you tips from a pro, a little background on Theo – Theo is a third generation greenhouse grower from the Netherlands with over 30 years of experience and ...


    By Illumitex

  • A Short Payback Period for Illumitex LEDs vs. 1000 W HPS | White Paper

    Overview Growers interested in purchasing supplemental or sole-source lighting need to be able to accurately predict the economics and cost of ownership for the many different types of fixture layouts and options available on the market.  A useful financial estimate is the simple payback (or return on investment, ROI) of choosing one system over another.  The ROI takes into ...


    By Illumitex

  • Importance of Red Lenses in Hunting Lights

    Red lenses are essential accessories for hunters. The application of such lights can help individuals find predatory animals lurking around the area. Compared to night vision goggles, red lenses do not change the surrounding colors of the environment, resulting in a more immersive hunting experience. ...


    By Larson Electronics LLC

  • The influence of reduced light intensity on the response of benthic diatoms to herbicide exposure

    Herbicide pollution events in aquatic ecosystems often co‐occur with increased turbidity and reduced light intensity. It is therefore important to determine whether reduced light intensity can influence herbicide toxicity, especially to primary producers such as benthic diatoms. Benthic diatoms collected from four rivers were exposed to herbicides in 48 h rapid toxicity tests under high light ...


    By John Wiley & Sons, Ltd.

  • Extreme Makeover: Photosynthesis Edition

    Plants are far better than humans at turning sunlight into food. But they’re not nearly as good as they could be: Thanks to quirks in the systems that have evolved to capture solar energy and use it to build sugars from carbon dioxide and water, the conversion efficiency of photosynthesis is but a few percent at best. With the need to produce more crops growing even faster than human ...


    By Ensia

  • Fabrication and characterization of CdS doped TiO2 nanotube composite and its photocatalytic activity for the degradation of methyl orange

    CdS doped TiO2 nanotube composite was fabricated by chemical bath deposition, and was characterized by the structural, spectral and photoelectrochemical properties. The results of the structural and spectral properties showed that CdS particles were successfully deposited onto the surface of TiO2 nanotube. It is demonstrated that CdS doped TiO2 nanotube composite improved the ...


    By IWA Publishing

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