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  1. All living organisms utilize light in two ways: a source of energy to drive photosynthesis, and a source of information to drive photomorphogenesis and photoperiodism by targeting specific signal-transducing photoreceptors. We develop spectral composition solely for photobiological responses. We don’t design for visual acuity, and we don’t mimic the sun’s spectrum. Our wavelengths are tailored for particular photomorphogenic responses, photoperiodic signals, chlorophyll A and B absorption, xanthophyll carotenoid pigments, and anthocyanin accumulation in plant tissue – along with unknown photoreceptors – to name a few. Spectrum LED Grow Lights: PhysioSpec™ The original. PhysioSpec is available with RAZR and designed for rapid root development and tight internode spacing for seedling and cutting propagation, along with full-cycle cultivation of leafy greens and microgreens. As with all Fluence PhysioSpec spectra, PhysioSpec is a broad spectrum designed first and foremost with cultivation in mind, yet has the added benefit for an ideal research and cultivation environment. Spectrum LED Grow Lights: PhysioSpec Indoor™ To create the most advanced spectrum for complete physiological plant growth, we had to challenge every assumption. Not only did this make the spectra better, it made it beautiful. Previously, 660nm (red) and 450nm (blue) were the most efficient LED packages, and coincided with peak Chl A and Chl B absorption areas. This led to a negligence of key photoreceptors and pigments outside this range. PhysioSpec Indoor is a full-cycle spectrum optimized for rapid growth and complete plant development. Tailored for growing plants from initiation to senescence (germination, clones/cuttings, mothers, vegetative and flowering applications) in indoor environments. With a CRI rating of 85, PhysioSpec Indoor offers a beautiful work and research environment with vivid colors and greater contrast to study the health of your crop. Spectrum LED Grow Lights: PhysioSpec Greenhouse™ Compared to PhysioSpec Indoor, PhysioSpec Greenhouse is enriched with a higher amount of blue photons in the 400-500nm range, which are used to offset plant stretch induced by the sun’s far red radiation. As an added bonus, PhysioSpec Greenhouse offers a world-class work and research environment with vivid colors and greater contrast to study the health of your crop. Spectrum LED Grow Lights: AnthoSpec™ With dual-peak spectrum at 450nm and 660nm, AnthoSpec is designed to provide rapid anthocyanin accumulation in plant tissue (i.e. purple lettuce coloration). Based on the latest academic research, AnthoSpec is the most efficient spectrum for increasing anthocyanin production in plants. Spectrum LED Grow Lights: PfrSpec™ With a peak spectrum at 730nm, PfrSpec™ is designed to exclusively target phytochrome far red photoreceptors. This spectrum is widely used to target Phytochrome Far Red (Pfr) in photomorphogenic lighting applications, and it is used to lengthen the dark period to encourage the flowering process in Short Day Plants. Spectrum LED Grow Lights: PrSpec™ With a peak spectrum at 660nm, PrSpec™ is designed to exclusively target phytochrome red photoreceptors. This spectrum is widely used to target Phytochrome Red (Pr) in photomorphogenic lighting applications, and it is used to delay flowering in short-day plants. Spectrum LED Grow Lights: UVSpec™ With a peak wavelength of 400nm, UVSpec™ is designed to provide beneficial photomorphogenic responses by creating a mild stress response in plants. As an example, when applied correctly, research shows increased THC content in cannabis plants. When applied incorrectly, research shows UV stress causes photoinhibition of chloroplasts, resulting in lower biomass production, photobleaching and death of leaves. See the difference Browse our catalog of spectral power distribution charts to see how PhysioSpec compares to a few of the more prevalent grow lights being used today: ceramic metal halide (also known as light emitting ceramic or LEC), high pressure sodium (HPS), metal halide and T5 fluorescent. Additional information can be found at: https://fluence.science
  2. Introducing the most energy-efficient flowering lamp ever Eindhoven, The Netherlands – Philips Lighting (Euronext Amsterdam ticker: LIGHT), a global leader in lighting, today announced the launch of the Philips GreenPower LED flowering lamp 2.0, an even more energy efficient way to extend daylight or interrupt the night growing cycle in greenhouses for growers that cultivate strawberries, cut flowers, bedding plants and cuttings. The new Philips GreenPower LED flowering lamp 2.0 builds on the first generation of Philips GreenPower LED flowering lamp and comes in two different spectral versions with light recipes for growing cut flowers and soft fruit. The new highly energy-efficient lamp is designed to increase the yield, quality and consistency of crops and accelerate flowering. Its design draws upon over twenty years’ experience that Philips Lighting has in horticultural lighting to serve the needs of growers. The first generation of the Philips GreenPower flowering lamp provided an important benchmark for energy efficiency following trials in 2014 and 2015 at the Research Centre Hoogstraten in Belgium, an independent horticultural research center. The next generation lamp provides an optimum spectrum and high light output and allows growers to save electricity costs by being 90% more energy efficient than conventional incandescent lamps. The lamps have a standard E27 or E26 fitting allowing them to be used in existing installations, avoiding unnecessary modifications and reducing set-up costs. Effective for crops To help growers achieve the best results for their crops, Philips Lighting has invented light recipes which combine the following elements: light spectrum, intensity, uniformity, timing and positioning. The Philips GreenPower LED flowering lamp 2.0 is available with two different spectral versions: one offers a combination of deep red and white (DR/W) and the other a combination of deep red/white/ far red (DR/W/FR). The DR/W light version inhibits flowering of short-day plants, and has for example been very effective with chrysanthemums. The DR/W/FR light version is ideal for photoperiodic lighting of bedding and perennials. It can extend the day or interrupt the night cycle to promote elongation of the stems of strawberries and stimulate flowering. “Being the first to market with a flowering lamp almost seven years ago, the Philips GreenPower LED flowering lamp 2.0 pushes the boundaries of how growers can gain control of crop quality and yield for their customers even more,” said Udo van Slooten, business leader for Philips Lighting’s Horticulture business. Lower maintenance costs The Philips GreenPower LED flowering lamp 2.0 looks like an incandescent lamp, but is made of robust plastic that mitigates the risk of damage to crops that can occur from broken glass lamps. To reduce maintenance costs, the lamp is designed to last at least 25,000 hours* and is rated for IP44 and UL damp and dry conditions indoors. Trials in countries which use photoperiodic lighting to produce cuttings or cut flowers have reported that the flowering lamp 2.0 is much more stable on the energy grid compared to incandescent or "twisters" (CFLs), so there is less risk of quality issues in crop production. The two spectral versions of this new LED flowering lamp are available to provide full installation flexibility. Source: lighting.philips