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Percival Scientific, Inc. Introduces an Affordable LED Lighting System for the Research Industry
Date:3/5/2013

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  • Maximum light output varies by chamber model. Beginning at 24° C, unlike fluorescent lighting, LED output increases 10% measured at 6” from the lamp bank as the temperature decreases to 0° C. In contrast newer fluorescent lighting (without using Percival’s patented lamp bank design) experiences a decrease in light intensity of up to 60% for the same temperature drop.
  • The challenges to a LED lighting system in research chamber applications include:

    • High ambient temperatures and humidity reduces output and efficiency
    • High initial cost
    • Color rendering is limited; doesn’t allow for every color in the spectrum of sunlight
    • Sensitive to voltage and polarity
    • Hard to achieve color distribution when multiple colors are used

    The challenge for researchers, especially those in the plant-growth research industry, has been finding a happy medium between unstable, high heat, hard-to-control fluorescent lighting and the high cost and color limits of a LED lighting system.

    New Design Approach

    Building upon a long history of experience and knowledge in LED lighting for a variety of research applications, Percival is taking a different approach to LED lamp design. The new design includes:

    • Improved lighting system performance over a larger range of temperatures
    • Greater flexibility to control specific wavelength of light
    • LED modules contain White/Red and White/Far Red color combinations
    • White LED’s are included on every module and offer a high-output Cool White color that is ideal for high light intensity, color rendering and visual plant inspection.

    This type of

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