BDL Labs

Research from Black Dog LED

  1. Lumens: Why They're Not That Important

    Lumens: Why They're Not That Important
    Luminous flux is a measure of the amount of light that is visible to the human eye, and lumens are the unit used to describe this measurement. So, why don't lumens matter when it comes to growing plants? Basically, lumens will show you how well a human eye will be able to see under a given light source... but plants...
  2. Photosynthetic Active Radiation (PAR)

    Photosynthetic Active Radiation (PAR)
    What it is, and Why it Matters Photosynthetically Active Radiation (PAR) refers to one way of measuring the range of light wavelengths (400–700 nanometers ) that can be used for photosynthesis (see absorption range for photosynthesis chart above). This range covers the visible spectrum of light, which includes red (700–635 nm), orange (635–590 nm), yellow (590–560 nm), green (560–490 nm...
  3. What Is Photosynthesis?

    What Is Photosynthesis?
    Photosynthesis Explained for the Indoor Gardener Although there is more than one type of photosynthesis, oxygen is released during the photosynthesis process in plants, so plants employ oxygenic photosynthesis. Oxygenic photosynthesis is the manner through which plants utilize light energy to convert carbon dioxide (CO2) and water (H2O) into glucose and oxygen. The chemical formula for this process is: 6...
  4. Root Zone Temperature

    Root Zone Temperature
    Critical for Large Yields Even though root zone temperature is critical to optimal plant performance, most indoor gardening enthusiasts don't spend much time thinking about it. There can be many reasons why an indoor gardener hasn't fine tuned his or her root zone temperature, such as: No cool night period, Satisfaction with the current performance of his or her plants...

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