- News
12 October 2018
Seoul Semiconductor sees demand for multi-spectral UV & visible LEDs for horticultural lighting
© Semiconductor Today Magazine / Juno PublishiPicture: Disco’s DAL7440 KABRA laser saw.
As VIP Sponsor of the 2018 Horticultural Lighting Conference in Portland, OR, USA (9 October), South Korean LED maker Seoul Semiconductor showcased its complete spectrum of solid-state lighting sources from UV-C to far-red for a wide range of applications
Seoul Semiconductor, which claims to be the first LED maker to deliver a complete spectrum of solid-state light sources for growing plants from ultraviolet (UV-C) to far-red, says it is experiencing a surge of interest in their Horticultural Series LEDs in chip-on-board (COB), mid-power and high-power packages.
“One of the areas where we have seen significant interest from our horticultural lighting customers in the last six months is the installation of supplemental UV LED lighting to boost production of cannabinoids in medicinal crops,” says Dr Peter Barber, product marketing manager for Seoul Semiconductor’s UV division Seoul VioSys. “By using targeted wavelengths of UV lighting during specific parts of the grow cycle, growers are able to get increased cannabinoid and terpenoid production from less expensive plants, boosting them to potency levels equivalent to those found in higher-cost crop strains.”
Cannabinoids, specifically tetrahydrocannabinol (THC) and cannabidiol (CBD), are the active ingredients that are used in medicinal products made from cannabis plants. Terpenoids are naturally occurring molecular compounds found in virtually all plants, and are responsible for enhancing the flavors and fragrances derived from a variety of crops.
“Another application area that growers are investigating is the use of UV LED lighting to combat powdery mold in strawberry, cucumber and hemp growing operations,” says Barber. “Applying low-dose, short-duration pulses of UV light timed with periods of darkness has shown promise as a method to reduce fruit and crop disease.”
Seoul Semiconductor introduced its Horticultural Series LEDs at the 2017 Horticultural Lighting Conference in Denver, CO. These horticultural-optimized LEDs span the light spectrum from multiple ultraviolet bands (UV-A, UV-B & UV-C) to far-red bands (700-800nm), providing horticultural lighting designers with the capability to develop a wide range of light sources to enhance the growth and propagation of different types of vegetables and plants in indoor settings.
SunLike Series LED technology, which delivers a light source close to the spectrum of natural sunlight, is part of the Horticultural Series LEDs, providing lighting designers with more options as they develop horticultural-specific lighting systems. SunLike Series’ natural-spectrum LEDs are light sources that combine Seoul Semiconductor’s latest optical and compound semiconductor technology with Toshiba Materials’ TRI-R technology (which, supported by Toshiba Materials, defines its original concept as “the light closest to the sun for human wellbeing”). TRI-R technology enables the spectrum of natural sunlight to be reproduced by a white LED light source technology.