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LEDs for horticulture
16 May 2018, Opto-Electronics

Würth Elektronik eiSos’ new WL-SMDC mono-colour ceramic LEDs for SMT assembly are optimally tailored to requirements in artificially illuminated greenhouses.

Besides the common colours of blue, yellow, green and red, these LEDs are also available in the wavelengths 450 nm (deep blue), 660 nm (hyper red) and 730 nm (far red). Their emission spectra correlate optimally with the absorption spectra of plant photosynthesis pigments.

While red and blue light provides plants with the most energy, different wavelengths control other growth processes. This fact is used in plant breeding with a controllable individual ‘light mix’. For instance, far red light (720 - 740 nm) in the infrared spectrum influences germination. This wavelength range can shorten the flowering time of plants, and promote elongation growth.

The horticulture LEDs are distinguished by high efficiency and brightness, as well as by their PPF values (photosynthetic photon flux, which determines the energy that plants can draw from LED light). The LEDs have a low thermal resistance, an electrically neutral heat path, small package size (3535) and low power loss.

For more information contact Jason Page, Würth Elektronik eiSos, +27 (0)71 259 9381, jason.page@we-online.com, www.we-online.com


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Further reading:

  • LEDs recognised for achieving natural light spectrum
    29 May 2019, NuVision Electronics, Opto-Electronics
    Seoul Semiconductor’s SunLike range of natural spectrum LEDs, first announced in 2017, have gone on to be recognised as an innovative technology for human-centric lighting at global lighting awards held ...
  • Infrared detectors
    29 May 2019, Würth Elektronik eiSos, Opto-Electronics
    Würth Elektronik eiSos is expanding its optoelectronics portfolio. Following infrared LEDs, the company now also offers a wide range of matching detectors. Developers of various infrared applications ...
  • Optical filters for electronic displays
    30 April 2019, Actum Electronics, Opto-Electronics
    Instrument Plastics’ extensive product range of optical filters for electronic displays includes EMC shielding, MRI and polycarbonate windows, lamination, diffusers, polarisers, glass and plastic filters, ...
  • FPGA-based video/imaging solution
    27 March 2019, Avnet South Africa, Opto-Electronics
    Microchip Technology released the new PolarFire FPGA imaging and video solution to address the challenges of developing complex computer algorithms which enable systems to capture and display information ...
  • LED lighting controller
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    STMicroelectronics has combined its LED control know-how with advanced power technologies in a new all-in-one LED control chip designed to enable luminaires to save more energy and deliver better user ...
  • RGB LED drivers
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  • 90 CRI LEDs with high efficacy
    30 January 2019, Altron Arrow, Opto-Electronics
    Cree has launched XLamp eTone LEDs, a set of chip-on-board (COB) LEDs that delivers 90 colour rendering index (CRI) light quality at the same efficacy as today’s standard 80 CRI LEDs. They also deliver ...
  • Constant-current LED drivers
    30 January 2019, Altron Arrow, Opto-Electronics, Power Electronics / Power Management
    Infineon Technologies’ LITIX Basic+ LED drivers serve as an extension to the existing LITIX Basic family. The new linear constant current sources, with their 1 to 3 inputs/outputs, build a scalable ...
  • Long-life LED for general lighting
    30 January 2019, OSRAM Opto Semiconductor SA, Opto-Electronics
    The new Osconiq S3030 is OSRAM Opto Semiconductor’s entry into the professional mid-power market. The LED is ideal for use in outdoor and industrial lighting, providing flexibility in forward voltage ...
  • LEDs recreate natural sunlight
    14 November 2018, RS Components (SA), Opto-Electronics
    The ‘SunLike’ LED range from Seoul Semiconductor has been developed as a natural-light LED that is optimised for human-centric lighting. Sunlike aims to contribute to the improvement of human health (including ...
  • Long-life LED for general lighting
    14 November 2018, OSRAM Opto Semiconductor SA, Opto-Electronics
    The new Osconiq S3030 is OSRAM Opto Semiconductor’s entry into the professional mid-power market. The LED is ideal for use in outdoor and industrial lighting, providing flexibility in forward voltage ...
  • High-speed optocouplers
    14 November 2018, Altron Arrow, Opto-Electronics
    Vishay Intertechnology introduced a new series of 1 MBd high-speed optocouplers featuring an open collector transistor output with Schmitt-trigger functionality for easy integration into digital systems. ...

 
 
         
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